m+i Biology 1408-3009 Final Exam study guide irelanddria – Flashcards

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question
The basic unit of all life is the nucleus.
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FALSE
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Tortoises which eat mostly shrubs have notches in their shell that allow their necks to extend upward, while tortoises which eat ground-level vegetarian have no notches. The notch is an example of ?
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An adaptation
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Which of the following levels of taxonomy includes the greatest number of organisms?
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Domain, kingdom, phylum, class, order family, genus, species
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Mutations provide the raw material for natural selection, and thus evolution.
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TRUE
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Which of the following is not considered a basic theory of biology?
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Atomic
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What would occur if all producers were removed from an ecosystem?
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Consumers would soon run out of food
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When a plant bends forward toward the light, it is responding to a stimulus.
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TRUE
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A group of cells with a common structure and function is NOT referred to as an organ.
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TRUE
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Humans belong to which kingdom?
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Animals
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What would occur if all the decomposers were removed from an ecosystem?
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Nutrients from dead organisms could not be recycled into the ecosystem
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Which structure occupies up to 90% of volume in plant cell?
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Central Vacuole
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What is the powerhouse of all cells?
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Mitochondria
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What would be an addition to the cell theory?
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Only eukaryotics are made of cells
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Where would the highest concentration of ribosomes be found inside cells?
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Rough endoplasmic reticulum
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If a cell has a nucleus, cell wall, and a large central vacuole then it is most likely?
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Plant cells
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Compared to prokaryotic cells, what is true about eukaryotic?
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Eukayotic cells have a nucleus
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What would be performed by apart of cell other than the cytoskeleton?
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4.10
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A chemist studies a large organic molecule with many subunits would be termed?
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Polymer
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Since carbon has 4 electrons in its outer shell, it must..
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Share 4 electrons to complete its outer shell
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When converting a polypeptide into smaller subunits, which chemical reaction would be needed?
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Hydrolysis reaction
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Why is sickle cell disease more common in African ancestors than Americans with European ancestors?
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the sickle shaped cell causes the parasite to die; therefore these people succumb malaria & get sick
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Which molecules can ionized and release hydrogen ions to make solution more acidic?
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Carboxyl
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Removal of hydroxyl group and a hydrogen atom from 2 molecules to join together is...
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Dehydration reaction
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3 parts that make up nucleotide: 1) sugar 2) phosphate 3) nitrogen base
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TRUE
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In plants, long term energy storage molecule are generally oils
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TRUE
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Specific combination of bonded atoms which always react in the same way?
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Functional Group
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The bond which results from transfer of electrons from 1 atom to another is called an Ionic Bond
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TRUE
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When the # of protons does not equal the # of electrons, the atom is called?
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an ion
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Kind of bond between positively & negatively charged atoms?
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Ionic bonds
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Identity of an Atom?
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Number of protons
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Term for water molecules to cling to other water molecules?
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Cohesion
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High does of radiation = bad but how do low levels of radiation isotopes help medicinally?
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As tracers in imaging organs using xrays & PET scans
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What interaction is shown between sodium and chlorine?
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Sodium atom gives up one electron
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What is not true about most other solvents, rather than about water ice?
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It is denser than liquid water
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Lemon juice has a pH of & should be classified as a?
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Strong acid
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Chemical bond results from equal sharing of electrons between 2 atoms?
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non polar
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This diagram shows atom of Phosphorus, how many electrons are in valence shell?
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5
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Directly or indirectly, all organisms get their energy from?
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the sun
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Major driving force behind evolution?
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Natural Selection
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Which level of biological organization includes least amount of biological material?
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Organ
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The main reason fire ants defend their nest & sting is to protect food supply.
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FALSE
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Which theory helps understand why various species differ from one another, tells what disease we're predisposed, ; enables us to produce drugs for variety to disease?
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Gene Theory
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Interactions within a population ; w/other populations are referred to as an ecosystem
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FALSE
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Which is not considered a basic theory of biology?
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Atomic
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Diagram showing connections, by descent from common ancestor, between crocodiles ; dinos is an evolutionary tree
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TRUE
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Which of these examples is HOMEOSTASIS?
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When a dog feels hot ; hangs tongue out to pant
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Which of the following term best describes stored energy?
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Potential energy
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Both plant and animal cells, at least some of each, have structures which join them together for communication.
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TRUE
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Chemical reactions that only occur if there is an input of energy are referred to as
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Energonic reactions
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Why is the cell wall Important when a plant cell is placed into a hypotonic solution?
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5.2
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A cell placed In a hypertonic solution will
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Lose water
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Which part of the cell would be of most interest when in studying production of ATP and NADPH?
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Thylakoids
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What would be the effect of increased oxygen on C3 plants?
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Decreased efficiency of photosynthesis
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What is the end products of the light reactions in photosynthesis
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NADPH and ADP
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Which of the following is a molecule which helps prepare for the Calvin cycle, rather then participating in it?
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Chlorophyll
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The last step in the Calvin cycle is
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RuBP regeneration
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In photosynthesis, which of the following molecules will be directly converted into glucose and other organic molecules?
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ATP
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Which is the following is reduced as a result of the Calvin cycle?
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Carbon dioxide
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If chlorophyll were altered to absorb green light, what color would be lost from leaves, compared to how they now appear?
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Green
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What part of the light reactions starts off photosynthesis?
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Photosystem 2
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The Main type of photosynthesis found in plants native to hot, arid climates is
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6.10
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What molecule would be of least interest In a study of fermentation?
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Oxygen
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Which of the following would be involved in a study of carriers in the electron transport chain?
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Cytochrome molecules
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If you follow a low-fat, high-carbohydrate diet, it is likely you will
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Gain weight because intermediate from cellular respiration can be converted to fat
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Which of these is an inaccurate description of the preparatory reaction?
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7.3
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What would be the result of oxygen became unavailable to the cell?
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The electron transport chain would stop
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Which is the following is a product of a part of metabolism other than the electron transport chain in cellular respiration?
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Oxygen
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The carbon dioxide we exhale results from the oxidation of
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7.1
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In animals, under anaerobic conditions, pyruvate is converted to which of the following molecules?
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7.7
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What role do NADH and FADH2 play in the process of cellular respiration?
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They carry electrons to the electron transport chain
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During the electron transport chain ATP is made through the process of chemiosmosis
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True
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Which of the following is an input for glycolysis
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7.2
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Degradative reactions which break down molecules are referred to as
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Catabolism
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A cell which has passed the G1 checkpoint is committed to synthesizing DNA
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True
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When observing an animal cell in telophase, you would expect to observe the formation of an
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Cleavage furrow
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A cell spends most of its time in which of the following phases
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Interphase
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Cancer cells result from the mutation of the DNA in non cancerous cells
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True
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Which option associates a type of animal cell with the genetic condition of another kind of animal cell
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8.2
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In plants, cytokinesis occurs with the formation of
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A cell plate
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Which sequence in the cell cycle is correct
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Prophase, metaphase, anaphase, telophase
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Which of the following would decrease ones risk of getting cancer
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Increased consumption of antioxidants
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It is possible to reprogram adult cells, such as epidermal cells, to produce stem cells for therapeutic uses
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True
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What material is seen when examining a chromosome in its relaxed form
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Chromatin
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Cancer can be best described as
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Uncontrolled cell division
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During anaphase, the chromosomes are lining up together
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False
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Which of these reasons for cell division goes beyond the normal requirements for it
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8.1-8.4
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When cancer has spread beyond its original location, it is said to have metastasized
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True
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Cancerous cells can be properly said
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8.6
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Males with kleinfelter syndrome have sex chromosomes which can be represented as
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XXY
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If a new kind of slug were found which had a system of sex determination just like that of humans, it would have
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Both sex chromosomes and autos ones
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A basic difference between spermatogenesis and oogenesis is that oogenesis
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9.2
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When a scientist observes a cell undergoing meiosis, microscopic examination shows too much DNA is one gamete and too little is another. The most likely explanation is
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Nondisjunction
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The fusion of sperm and egg is called synapsis
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False
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Crossing-over occurs during which of the following phases
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Prophase 1
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A person with Klinefelter syndrome has long arms, long legs and some breast development due to which chromosomal anomaly?
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XXY
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The process which leads to more genetic diversity in meiosis is called
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Crossing over
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Common life cycles include haploid and diploid
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True
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Homologues are corresponding chromosomes with genes in the same order, though alleles may differ between them
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True
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Meiosis results in a change in chromosome number which can be written as
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"2n to n"
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Gametes and spores
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9.2
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It is possible for a person with Down syndrome to live and active and successful life
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True
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The nuclear envelope does not reform during telephase 1
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True
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A woman who can roll her tongue(presumably dominant) is married to a man who cannot. Two of their four children can roll their tongues and two cannot. What is the genotype of the parents
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Woman Aa, Man aa
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Individuals who are heterozygous for the sickle cell disease have an increased resistance to the protozoan which causes malaria
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True
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Which of the following terms would be used for an allele which can mask the expression of another allele
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10.2
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In a Mendelian monohybrid cross, which generation is always completely heterozygous
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F1
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If a genotype of an organism is YySsTt. then what does yST represent?
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A possible gamete of the parent
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A doctor inserts a long needle into the uterus and removes some fluid to perform a genetic test. Which of the following procedures did the doctor perform
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10.6
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When a trait has more than two different forms, the gene has
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Multiple alleles
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If pairs of factors separate independently of other pairs of factors, you are dealing with the
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Law of interdependent assortment
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When two or more sets of alleles affect the same trait, it is referred to as
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10.8
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Which of the following would be an addition to Mendels Law of Segregation
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One factor must be dominant and one factor recessive in each individual
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If a biologist wanted to manually cross fertilize two pea plants, which of the following steps must be taken
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Transfer pollen from one plant to the other
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Which of the following disorders is characterized by thick, viscous mucous production in the lungs and digestive tract
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Cystic fibrosis
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A biologist study the process of how DNA copying is studying what process
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DNA replication
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In semiconservative DNA replication, each new double helix formed will have
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One new strand and one old strand in each helix
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The X-ray diffraction of Rosalind Franklin and Maurice Wilkins were critical evidence
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That indicates that DNA has a double helix structure
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The function of transfer RNA is to
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Carry amino acids to ribosome
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What is the error rate in the DNA replication process for eukaryotes
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One in 1 billion nucleotides
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During DNA replication, which enzyme is responsible for unzipping and unwinding the original molecule of dna
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Helicase
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The scientist credited, in the popular imagination, with the discovery of the helical structure of DNA are
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Watson and crick
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Which of the following nitrogenous bases are correctly paired
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Adenine-thymine;guanine-cytosine
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Which process in translation is the movement of the ribosome, such that the tRNA at the A site moves to the P site
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Translocation
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Which statement about ribosomes is least accurate
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The ribosome is made up of three subunits
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Movable genetic elements are referred to as
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Transposons
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Which of the following is true of some kind of mutation other than a frame shift mutation
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They only affect one codon
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Which molecule carries genetic information from the nucleus to where new proteins are manufactured
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mRNA
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Regulatory genes are located outside the openings which they regulate
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True
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Which statement would be correct for genes controlling development, excluding Hox genes
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12.4
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Which is loosely condensed chromatin where genes are expressed
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Euchromatin
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What is the role of the transcription factors
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Binding promoter to start transcription
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Where in the cell do the translation repressed protein and the proteasome work
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On the nuclear membrane
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The control of gene expression which occurs in the nucleus and involves mRNA processing is referred to as
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Posttranscriptional control
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Which gene codes for proteins that stimulate the mitotic cell cycle
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Proto-oncogenes
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Since the same DNA and genes are found in each cell in the body. All the proteins made and in each cell of the body will be the same
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False
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Which of the following would, if found, be a new discovery about stimulatory signal transduction pathways for the development of cancer
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12.8
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Which component in an operon acts first in expression
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12.1
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What is the function of the translation repressor protein
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It binds to a mRNA and prevents translation from that mRNA
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What large molecule is usable wrapped around histones
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DNA
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Which of the following structures is visible during cell division
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Chromosomes
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A biologist is studying a gene which is located outside the operon and codes for a repressor protein that can deactivate the operon. This biologist is studying which of the following genes
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Regulatory genes
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What happens inside a normal cell when a stimulatory growth factor binds to its receptor of the cell membrane
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A transcription factor turns on a proto-oncogene, which activates the cell cycle
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In a new treatment of skin cancer, viruses are used to deliver the p53 gene directly into cancer cells, which then causes apoptosis of these infected cells. What type of treatment is this
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In vivo gene therapy
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Which beat describes transgenic organism
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One which contains a foreign gene and is free living in the environment
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The manipulation of a persons gene is also called
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Gene therapy
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What was the goal of the human genome project
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Determine the nucleotide sequence of all DNA in a human cell
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How was the cloning of dolly the sheep first performed
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An adult nucleus was inserted into an enucleated egg cell
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A doctor is studying in the field of gene therapy has removed tissue from the patient, inserted normal genes into the tissue and then reinserted the tissue back into the patients body. Is an example of
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Ex vivo gene therapy
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Which technique would a biologist use to insert genes into eggs by hand
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Micro injection
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Which non coding DNA are found in between the exons of genes and may serve as regulators of gene expression
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Introns
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What is the function of DNA ligase in genetic engineering
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Link cut pieces of dna
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Which of the following is a reason why the genetic modification and the transfer of genes between organisms can occur
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13.2
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Which of the following generally causes least concern about genetic engineering
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13.2
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If you wanted to perform recombinant DNA experiments which of the following would you need
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Restriction enzymes and DNA ligase
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Which of the following is not an example of genetic modification in a plant
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13.5
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Which of the followings is least an obstacle to cloning animals
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13.1
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What is the composition of a cell membrane?
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5.01
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Cyanide is a poison that binds to the final carrier in the electron transport chain. Why does this property make cyanide deadly?
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Cyanide prevents the reduction of oxygen and stops the electron transport chain
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What would occur if the thylakoid membrane was highly permeable to hydrogen ions?
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ATP synthase complexes would not work
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How can enzymes speed up chemical reactions?
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They lower the activation energy needed for the reaction
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Which of the following is more true of a C3 plant rather than a C4 plant?
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6.10
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What are the membrane-lined channels that allow direct exchange of materials between two adjacent plant cells?
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Plasmodesmata
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What is water split during photosynthesis?
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to replace the electron lost in photosystem II
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When chloride ions cannot cross through the plasma membrane, what disease does the patient have?
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Cystic Fibrosis
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The Calvin cycle is directly dependent upon a supply of..
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carbon dioxide, NADPH, and ATP
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What would happen if the molecule RuBP disappeared from a plant?
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Carbon dioxide fixation would stop
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If the electron transport chain stopped during photosynthesis, what would be the direct result?
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ATP would not be produced
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During the process to move an organelle inside a cell, the motor protein dynein must bind the organelle and use energy to walk along a microtubule tract. How is the energy to the dynein supplied?
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5.06
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Which of the following would be least likely to have a direct effect on the speed at which a given enzyme works?
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Oxygen concentration
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Which of the following statements about participants in a reaction would have to be about a component other than an enzyme?
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They are not reusable
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If 0.9% NaCl were isotonic compared to a cell, then
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5.02
question
Which part of an enzyme binds to its substrate?
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Active site
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How do cyanide and sarin nerve gas act on enzyme targets?
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enzyme inhibitors
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When chloride ions cannot cross through the plasma membrane, what disease does the patient have?
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Cystic Fibrosis
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According to the fluid-mosiac model, a cell membrane is assembled from..
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a phospholipid bilayer w/embedded proteins
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A cell lacking ATP would be able to run all endergonic reactions.
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TRUE
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Which of the following states the First Law of Thermodynamics?
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Energy cannot be created or destroyed
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Both plant and animal cells, at least some of each, have structures which join together for communication
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TRUE
question
A cell placed in a hypotonic solution will...
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gain water
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During the process to move an organelle inside a cell, the motor protein dynein must bind the organelle and use energy to walk along a microtubule tract. How is the energy to the dynein supplied?
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(wrong answer) from the exergonic reaction of ATP formation 5.06
question
Which of these would be a novel function for a cell membrane protein?
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(wrong answer) transfer molecules from cytoplasm to outside of cell 5.01
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What happens if more substrates are added to a reaction which already has reached max rate?
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(wrong answer) it will strongly decrease reaction rate 5.07
question
If you were studying extensions that form when cytoplasm streams in a particular direction you would be studying
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Pseudopods
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You observe a dead fish floating in a pond and notice that is has "furry" growth on and around its body. After consulting your trusty field guide you determine that the "furry" growth is
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A water mold
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You are looking through a microscope at a green alga sample taken from a pond. The alga is unicellular and has two flagella. Based on this information you would conclude that you are probably looking at what alga?
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Chlamydomanos
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Most of the sediment that accumulates on the ocean floor is due to
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Dead foraminiferans and radiolarians
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Of the following statements about Protists, which one is least useful in defining Protists or groups of Protists
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18.2
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All diseases caused by protozoans must be transmitted by a vector
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False
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If you wanted to write a paper about an organism which exhibits a haploid life cycle, which alga could be the topic of your paper
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18.10
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You were discovered a previously unknown protist, and in deciding to use the most modern methods in classifying it, you would look at
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18.2
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The organism which causes malaria is
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A protist
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Which statement would be true of a ciliate but not of the protozoan that causes malaria
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All stages of the life cycle are motile
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In comparing green algae and ciliates which of the following terms would not apply to the ciliates
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Autotrophic
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If you were writing a paper on the beneficial aspects of the Protists for humans and the environment, which of the following would be excluded from your paper
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They have a parasitic relationship with some organisms
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Which of the following statements about the origin of eukaryotic m cells is least accurate
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The chloroplast came from aerobic bacteria
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Which of the following are nonvascular plants
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Mosses
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A plant physiologist is studying the portion of the moss gametophyte which produces flagellated sperm which is
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The antheridium
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Which of the following is a service provided by fungi, rather than plants, for human benefit
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19.7-19.8
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The mycelium is a mesh of filaments each of which is called
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A hypha
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Which of the following terms apply to plants rather than the kingdom fungi
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Autotrophic
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Compared to the moss, the fern is better adapted to life on land because the fern
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Has vascular tissue, but mosses don't
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Which of the following is a major trait which allowed plants to move onto and adapt to dry land
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19.1
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Which of the following statements is true for the gametophyte generation rather than the sporophyte generation
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It is dominant in mosses
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If you wanted to write a paper on the largest group of plants, your paper would be on
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Angiosperms
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Tetrapods evolved from which of the following groups
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20.13
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Humans belong to which phylum
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Chordates
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From the earliest to latest, which is the correct order of this significant innovations in the evolutionary tree of animals
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Multicellular, true tissue germ layers, bilateral symmetry, body cavity, eucoelom, segmentation, jointed limbs
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Which of the following terms would not be associated with flatworms
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Sessile
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The anterior region of a tapeworm, which bear hooks and suckers for attachment to the intestinal wall of the host, is termed the
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Scolex
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Which statement is true of at least some Arthropods other than arachnids
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20.10
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A ______ of a tapeworm contains both male and female sex organs and becomes filled with developing embryos
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Proglottid
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Which feature existed before the adaption of reptiles for life on land
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ectothermic physiology
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If you were studying characteristics of the class osteichthyes, you wouldn't need information on what
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A cartilaginous Skelton
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Which marine food source falls outside the molluscs
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Lobsters
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Animals which have definite right and left halves are said to have
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Bilateral symmetry
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Capuchin monkeys are anthropoids
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True
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Which is the closest relative of lemurs
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Tarsiers
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Homo erectus was a hunter gatherer
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True
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Which specific epithet is used within the genus Australopithecus rather than in homo
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Afarensis
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Human migration patterns start in Africa
answer
True
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Which statement would have first driven the evolution of bipedalism in hominids
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21.3
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Which of the following paleontologists was the first to unearth homo erectus bones
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Eugene dubois
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One characteristic of primate evolution is decreasing brain size over time
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False
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Neanderthals lived mainly in Africa
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False
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Which characteristic would be found in a primate which travels on all four limbs
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The pelvis is long and narrow
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While digging in east Africa in a layer of sediment which dates back to 4.4 million years ago, you find an early homonin fossil about the size of chimpanzee. Based on the place and the time you could conclude that it is an
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Ardipithecus ramidus
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One characteristic of primate evolution is reduced reproductive rate
answer
True
question
The famous early hominin of the species Australopithecus Africanus is known as
answer
Lucy
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What happens if more substrates are added to a reaction which already has reached maximum rate
answer
5.7 (it will strongly decrease reaction rate)
question
During the process to move and organelle inside a cell, the motor protein dynein must bind the organelle and use the energy to walk along a micro tubule tract. How is the energy to dynein supplied
answer
5.6 (from the exergonic reaction of ATP formation)
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A cell placed in a hypotonic solution will
answer
Gain water
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What is the value of the checkpoints in the cell cycle
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They prevent cells from Advancing in the cell cycle until ready to complete the next stage
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When observing an animal cell in telophase, you would except to observe the formation of a
answer
Cleavage furrow
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Molecules which stimulate or inhibit cell division are referred to as what
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8.5 (transduction molecules)
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Cancer cells result from The mutation of the DNA in non cancerous cells
answer
True
question
If a cell is seen to be in telophase, what immediately preceeded this
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Anaphase
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A scientist observes a cell which is stopped at the m checkpoint for an usually long time. The scientist should guess that
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A problem has occurred with chromosome distribution
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A scientist studying two daughter cells resulting from mitosis will find them to be genetically identical
answer
True
question
The spindle has not changed significantly during the evolution of eukaryotic organisms
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False
question
Mitosis corresponds with the s phase of the cell cycle
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False
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What is the term for programmed cell death
answer
Apoptosis
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If a diploid parent cell undergoes mitosis, then afterwards there will be
answer
Two diploid daughter cells
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Observing a tumor In a lab rat, you observe a large mass of cancerous cells. This should be called a
answer
Tumor
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What is the proper order of events in the cell cycle
answer
G1, S, G2, M
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If you observe the sister chromatids separating during cell division, what phase of mitosis would you be observing
answer
Anaphase
question
While observing some cells, a scientist sees the organelles double in one cell. That cell is in what phase of the cell cycle?
answer
G1
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What material is seen when examining a chromosome in its relaxed form
answer
8.1 (chromatids)
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The plant lifecycle is one of the alternations of generations
answer
Teuw
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Which of these events happens during anaphase 1
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9.4 (sister chromatids separate)
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Crossing over occurs during which of the following phases
answer
Prophase 1
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A geneticist is studying the movement of a chromosome segment from one chromosome to another. This scientist would be studying a
answer
Translocation
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Genetic variation in organisms is produced by
answer
9.3 (mutations)
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Mitosis and meiosis both require two nuclear divisions
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False
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Which of the following chromosomal anomalies does not usually cause any symptoms in humans
answer
9.7 (trisomy y)
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Chromosomes cannot be homoloques if they have the same genes but different alleles of those genes
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False
question
Females with Turner syndrome have sex chromosomes which can be represented as
answer
XO
question
What phase of meiosis precedes prophase 2
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Telophase 1
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Meiosis results in a change in chromosome number which can be written as
answer
"2n to n"
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A geneticist is studying the genetic makeup of a baby and discovers that part of chromosome five has a piece missing. The baby is suffering from:
answer
Down syndrome
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Which chromosome configuration designates a person with Turner syndrome
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XO
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The second meitotic division is essentially a mitotic division except for the fact that the cells produced are
answer
Haploid
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Because genes close together on a chromosome tend to be inherited together, they are said to form a
answer
Linkage group
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When a trait has more then two different forms, the gene has
answer
Multiple alleles
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If Pairs of factors separate independently of other pairs of factors you are dealing with the
answer
Law of independent assortment
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Which of the following disorders is characterized by benign tumors Nashe up of nerve cells and may include skeletal deformities
answer
Neurofibromatosis
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A plant with yellow flowers was crossed with a plant with red flowers. All the number out offspring had red flowers. What does this show about the genotype of the parental plant with yellow flowers
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It is homozygous recessive
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This figure shows a human pedigree with two females (in third generation) with breast cancer. What is the genotype of their father
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Heterozygous
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If you were studying the phenomena of one gene having more than one effect. You would be studying which of the following
answer
Pleitropy
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When an organism has two identical alleles for a trait we would refer to this condition as
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Homozygous
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When two different dominant alleles are both fully expressed in the phenotype, it is referred to as
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Codominance
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Genetic crosses which involve two traits are referred to as a phenotypic crosses
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False
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How much of the available energy stored in glucose is converted to ATP?
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39%
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What is the net yield of ATP from glycolysis of one glucose molecule?
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2 ATP
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As a result of glycolysis, one molecule of glucose is broken down into two molecules of...
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pyruvate
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What material(s) are put into the Krebs Cycle?
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acetyl groups
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What are the reactants involved in cellular respiration?
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Oxygen ; glucose
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during the electron transport chain ATP is made through the process of chemiosmosis
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true
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once NADH and FADH2 have delivered their electrons and hydrogen ions to the electron transport chain, they
answer
7.1-7.5
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pyruvate is converted to a two carbon acetyl group attachment to coenzyme A (CoA), and carbon dioxide is given off during which phase of cellular respiration
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preparatory reaction
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what would be the result if oxygen became unavailable to the cell
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the electron transport chain would stop
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in animals, under anaerobic conditions, pyruvate is converted to which of the following molecules
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7.7
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the calvin cycle is directly dependent upon a supply of
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carbon dioxide, NADPH, and ATP
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elections move from photosystem 2 to photosystem 1 via what part of photosynthesis
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electron transport chain
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During the process of cellular respiration, what is the total # of ATP produced per glucose molecule?
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36 or 38
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the major advantage of the CAM pathway is
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water conservation
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which of the following occurs outside the calvin cycle
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6.8 (RuBp regeneration)
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which of the following organisms use organic molecules produced by photosynthesis
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heterotrophs and autotrophs
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in photosynthesis, which of the following molecules will be directly converted into glucose and other organic molecules
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G3P
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the major goal of the calvin cycle is to produce what material
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carbohydrate
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Which of the following statements, if true, would be a major change to how photosynthesis works?
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(wrong answer) they need light to work 6.1 ; 6.2
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the calvin cycle in CAM plants exemplifies the term "light interdependent reactions" because
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the stomata of CAM plants only open and allow carbon dioxide to enter at night
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What would occur if the thylakoid membrane was highly permeable to hydrogen ions?
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ATP synthase complexes would not work
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What is the significance of the stroma of the chloroplast?
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It contains metabolism enzymes used to reduce carbon dioxide to carbohydrate
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Which of the following statements would disqualify an organism as an autotrough?
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They must take in organic matter to make energy
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Photosystem II evolved before Photosystem I
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FALSE
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The interior region of a tapeworm, which bears hooks and suckers for attachment to the intestinal wall the host, is termed the
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Scolex
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You are walking along a beach and find animal which has a hard exoskeleton, five pairs of walking legs, and compound eyes based on this information the animal you found was
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A crustacean
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The improvement in visual acuity in primates over time has led to stereoscopic vision with good depth perception
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TRUE
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Which the following is an old world monkey
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Rhesus monkey
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Which statement would have first of the evolution of bipedalism in hominids
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(wrong answer) it frees up hands for tool use
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One characteristic a primate evolution is decreasing brain size over time
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False
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which is closest relative of humans
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Chimpanzees
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Term mosaic evolution is best described by which the following
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Different body parts evolve the different rates
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Human migration patterns start in Africa
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True
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Why do researchers studying the migration history of the human population use mitochondrial DNA(mtDNA) to trace migration patterns?
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MtDNA has occasional harmless mutations which eventually appear in almost all individuals in a population and carry with them during migration
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From a genetic standpoint which for me to have the closest relationship to humans
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Chimpanzees
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Which trait would be very surprised to find a chimpanzee?
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A tail
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Which is the closest relative of lemurs?
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Tarsiers
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What would be a surprising innovation in a newly discovered shark?
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A sucker used to attach to prey
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A biologist studying mammals with Julie eggs, implying study of what organisms?
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monotremes
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In the lifecycle of Adcaris, the final place of residence of the adult worm is
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The intestine of humans
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Which animal is classified outside the echinoderms?
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(wrong answer) sea cucumbers
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A study of the Chorades is general, as opposed to particular groups of Chorades, would exclude what characteristic?
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(wrong answer) notochord
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A _____ of a tapeworm contains both male and female sex organs and becomes filled with developing embryos
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Proglottid
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If you were an instructor creating an exam containing all of the statements about sponges, which would you mark wrong?
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Water enters through a single cavity, the osculum
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The reason why most leaves are green is that they absorb the green wavelengths of light
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FALSE
question
Which statement is least distinctive of the Cnidarians?
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(wrong answer) they have two body forms: polyp and medusa
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If you were a scientist studying animals that have their body cavity incompletely lined with mesoderm, you would be studying
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Pseudocoelomates
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Sphagnum is a type of _____ that has nonliving cells that can absorb moisture and can be used in gardening
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Moss
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If you wanted to write a paper about an organism which exhibits a haploid lifecycle, which alga would be the topic of your paper?
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Chlamydomonas
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You were in a boat just off the coast of California and noticed some extremely large seaweed floating on the surface of the ocean, based on what you learned in your biology class you would conclude that you were looking at
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brown algae
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Of the following statements about protists, which one is least useful in defining protists or group of protists?
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(wrong answer) they can reproduce sexually
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Mushrooms and puff balls belong to the
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Club fungi
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Which statement is true for some close relatives of ferns but not for ferns themselves?
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(wrong answer) the sporophyte stage is the dominate generation
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A plant psychologist is study the portion of the moss gametophyte which produces flagellated sperm, which is
answer
The antheridium
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Why do some plants feed on insects other small animals
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To obtain nitrogen
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If you were studying euglenoids, you would most likely find them...
answer
in freshwater ecosystems
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If you were studying the female portion of the moss gametophyte you would be studying
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the archegonium
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Which of the following terms apply to plant rather than the Kingdom fungi?
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(not answers) decomposers
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The mycelium is a mesh of filaments, each of which is called
answer
(wrong answer) a conidium
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A plant psychologist is studying the characteristics of gymnosperms and angiosperms and finds which characteristic to be shared between them
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Pollen is carried by the wind for pollination
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A biologist a setting the mutualistic relationship between fungi and Cyanobacteria or green algae and, thus, is studying
answer
Lichens
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Which organism has chloroplasts containing pyrenoids?
answer
Euglena
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The main function of the trichocysts of a ciliate is
answer
Defense ; capturing prey
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And which the following would you observe an alteration of generations?
answer
Ulva
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The carbon atoms in the carbohydrate produced by photosynthesis come from carbon dioxide.
answer
TRUE
question
If you're writing a paper on the beneficial aspects of the protists for humans in the environment, which the following would be excluded from your paper?
answer
They have a parasitic relationship with some organisms
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What role do NADH and FADH2 play in the process of cellular respiration?
answer
They carry out electrons to the electron transport chain
question
What is the significance of the cristae in the mitochondria?
answer
(wrong answer) increase surface area, therefore increasing glycolysis 7.5
question
In comparing green algae with trypanosomes, which of the following terms would be not associate w/the trypanosomes?
answer
Autotrophic
question
One molecule has gone through glycolysis and the preparatory reaction. The net number of ATP molecules produced so far is...
answer
two
question
The organism which causes malaria is
answer
a protist
question
The best fat burning exercise would be...
answer
(wrong answer) short and anaerobic) 7.8 7.B
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Which part of cellular respiration produces the greatest amount of ATP?
answer
(Wrong answer) Krebs cycle 7.6 & 7.7
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Which of the following is reduced as a result of the Calvin cycle?
answer
Competitive inhibition
question
A claim that a machine that can run forever, there for producing as much energy on the consumes, violets what?
answer
Second Law of Thermodynamics
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Chemical reactions that only occur if there's an input of energy is referred to as
answer
Endergonic reactions
question
Which of these would be a novel function for cell membrane protein?
answer
(wrong answer) transfer molecules from cytoplasm to outside of cell 5.1
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