Bio 100 CSUSB Ghaffari Final (Blackboard Released Questions) – Flashcards

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Which of the following contain prokaryotic cells?
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* a) the archaea
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2. The molecule associated with energy transfer in living organisms is:
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* c) ATP
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3. A community and its physical and chemical environment constitute:
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*c) an ecosystem
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3. A community and its physical and chemical environment constitute:
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*c) an ecosystem
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4. The molecule of inheritance is:
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*a) deoxyribonucleic acid
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5. Which of the following is not a requirement of all living things:
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*d) aerobic respiration
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6. The one-way flow of energy through the biosphere starts with energy input from:
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* b) the sun
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7. The scientific name for human is HOMO SAPIENS. HOMO is the genus and SAPIENS is the specie. The scientific way to refer to human is:
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* d) Homo sapiens (italicized)
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TRUE OR FALSE 8. Decomposers include certain bacteria and fungi.
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T
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TRUE OR FALSE 9. Sexual reproduction results in offspring that are genetically identical to the parent.
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F
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1. The atom of element Phosphorus has 16 neutrons and 15 electrons. What is the atomic number for Phosphorus atom?_____________
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15
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2. Element Helium(He) has atomic number of 2. Do you consider this element reactive or inert?
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inert
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3. Atoms gain or lose electrons to form
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* a) ionic bonds
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4. The normal range of blood pH indicates:
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* a) 7.3-7.5
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5. Two atoms of oxygen are bond together by double covalent bond. How many electrons do they share?
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* b) 4
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True or False 6. Neutrons are negatively charged
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F
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True or False 7. Water is a great solvent of polar molecules
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T
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True or False 8. In a polar covalent bond, electrons are equally shared
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F
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1. Loss of a proteins normal 3-D shape because of high temperatures or changes in pH is called:
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* b) denaturation
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TRUE OR FALSE 2. In a condensation reaction, small molecules come together to make a large molecule.
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T
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TRUE OR FALSE 3. Ribose is a 6-carbon monosaccharide.
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F
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4. ____ building blocks of nucleic acids are
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c. nucleotides
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5. ____ building blocks of proteins are
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e. amino acids
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6. ____ building blocks of most lipids are glycerol and
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g.fatty acids
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7. ____ building blocks of carbohydrates are
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b. monosaccharides
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True or False: 1. If a solution outside of a cell contains a greater concentration of dissolved solutes than the contents of the cell, the solution is said to be hypotonic. ____
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F
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True or False: 2. In active transport solutes are transported down their concentration gradient. ____
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F
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True or False: 3. Phospholipids contain a hydrophobic head and two hydrophillic tails. ___
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F
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4. Plant cells but not animal cells have:
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c) plastids d) central vacuole
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5. ____ synthesis of proteins takes place in
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l. rough ER
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6. ____ photosynthesis takes place in
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h. chloroplasts
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7. ____ synthesis of lipids takes place in
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k. smooth ER
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8. ____ modify, sort, package ;ship proteins
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j. Golgi bodies
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9. ___ provide movement for the cells
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n.flagella
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10. ____ digestion in the cell is done by
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c. lysosomes
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11.____ ATP is produced in
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a.mitochondrion
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1. The final product(s) of glycolysis include:
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b) pyruvate molecules c) ATP
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2. Oxygen is formed during:
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*a) the non-cyclic pathway of ATP formation
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3. Cells ability to acquire energy and use it to, store, build, or break apart substances is called:
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* d) metabolism
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4. Enzymes
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a) speed up metabolic reactions b) lower the activation energy
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True or False: 5. In the non-cyclic pathway of the light-dependent stage of photosynthesis, two photosystems are involved.
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T
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True or False: 6. Glucose is formed in the light-dependent stage of photosynthesis. ____
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F
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True or False: 7. The starting molecule in glycolysis is pyruvate. ____
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F
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True or False: 8. Krebs cycle of aerobic respiration takes place in the cytoplasm.
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F
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True or False: 9. CO2 is released during Krebs(citric acid) cycle. ____
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T
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True or False: 10. Light-independent stage of photosynthesis takes place in the grana. ____
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F
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True or False: 11. In exergonic reactions, energy is released. ____
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T
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1) What would be the complimentary strand of DNA to the DNA strand below? DNA 3A-T-C-G-T-T-G-A-C-A-T-T 5
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5 T-A-G-C-A-A-C-T-G-T-A-A 3
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2) One species DNA differs from others in its
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* c) nucleotide sequence
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3) DNA replication results in
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* b) two molecules, each with one old strand and one newly assembled strand of nucleotides
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4.___DNA binding proteins
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d.stabilize the single-stranded DNA ; keep the strands apart
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5.___DNA polymerase
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a.adds DNA nucleotides to the primer to build the new strand
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6.___ligase
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b. joins Okazaki fragments seals small gaps
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7.___helicase
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f. unwinds parental DNA double helix
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8.___Primase
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e.produces ; adds primers to template strand
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9. __Watson ; Crick
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c. discovered the double helix structure of DNA
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1. What would be the mRNA transcribed from this DNA sequence? DNA 3T-A-C-A-T-A-A-G-G-A-A-T-T-C-T-A-C-T5
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mRNA 5A-U-G-U-A-U-U-C-C-U-U-A-A-G-A-U-G-A3
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For how many amino acids does this mRNA sequence code?
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5
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2. The RNA molecule is
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* b) single-stranded
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3. mRNA is produced by
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* b) transcription
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4. The five-carbon sugar found in RNA is:
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* b) ribose
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5. The loading of mRNA onto an intact ribosome occurs during
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* a) translation
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TRUE OR FALSE 6. The enzyme used during transcription is DNA polymerase._____
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F
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TRUE OR FALSE 7. A codon is a double nucleotide on mRNA.____
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F
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8.___ initiation
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b.the first tRNA carrying methionine binds ribosome and mRNA
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9.___ elongation
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e. tRNA molecules carrying amino acids add to the growing polypeptide chain
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10.___ termination
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d. a stop codon is reached
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TRUE OR FALSE 1) In animals cells, cytoplasmic division is done by furrowing. ____
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T
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TRUE OR FALSE 2) Nuclear membrane begins to break down in prophase. ____
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T
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TRUE OR FALSE 3) Chromosomes are at their maximum condensation in telophase. ____
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F
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TRUE OR FALSE 4) Random alignment of the homologous chromosomes happens at metaphase I. ____
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T
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TRUE OR FALSE 5) There are two nuclear divisions in mitosis and one nuclear division in meiosis. _____
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F
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TRUE OR FALSE 6) Mitosis and cytokinesis give rise to two clones (genetically identical cells). ___
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T
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TRUE OR FALSE 7) A human primary oocyte can give rise to only one viable egg. ___
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T
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8) Sister-chromatids are lined up at the equator of the spindle at:
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* a) metaphase stage of mitosis
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9) Chromosomes are duplicated in:
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* c) the S stage of interphase
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10) Crossing over
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a) takes place during prophase I stage of meiosis b) happens between the nonsister chromatids c) produces variety in the genetic make up of the gametes
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TRUE OR FALSE: 1) A homozygote has a pair of identical alleles whereas a heterozygote has a pair of nonidentical alleles.
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T
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TRUE OR FALSE: 2) Pink color of flowers produced by snapdragon plants is an outcome of incomplete dominance.
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T
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TRUE OR FALSE: 3) If a womans genotype at the ABO locus is IA i, her blood type is O.
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F
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TRUE OR FALSE: 4) Pleiotropy refers to traits which are resulted from multiple genes.
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F
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TRUE OR FALSE: 5) AB blood type is an outcome of co-dominance.
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T
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TRUE OR FALSE: 6) Breast cancer is a sex-limited trait.
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T
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TRUE OR FALSE: 7) Mendel performed dihybrid crosses to text his theory of independent assortment.
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T
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TRUE OR FALSE: 8) Most of human traits are multifactorial traits.
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T
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5) In a paternity suit, a woman with type AB blood accuses a man with type O blood of fathering her child. The child has type AB blood. Could the man be the childs father?
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* b) no woman IA IB i i IA i IB man i i IA i IB The offspring could be A or B blood type but not AB!
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10) The F2 phenotypic ratio of Mendels monohybrid cross is
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* e) 3:1
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11) Gregor Mendel discovered:
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* c) the theory of independent assortment
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12) The phenotype of an organism:
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a) are the traits of that organism b) is affected by the environment c) is affected by its genotype
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13) Offspring of the cross AA* aa are:
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* c) all Aa
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14) The F2 phenotypic ratio of Mendels dihybrid cross is
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* c) 9:3:3:1
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15) The F2 genotype ratio of Mendels monohybrid cross is
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* d) 1:2:1
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1. Sickle cell disease illustrates a balanced polymorphism because carriers are resistant to:
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* d. malaria
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2. Forces that change allele frequencies include:
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a. natural selection b. migration c. genetic drift d. mutation
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3. A _____ occurs when many members of a population die and only a few are left, by chance,to replenish the numbers in that population.
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* b. population bottleneck
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4. Albinism in uncommon in the United States but affects 1/200 Hopi Indians. A contributing factor for this high increase is:
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* a. nonrandom mating
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TRUE OR FALSE: 5. If a population migrates and picks up new individuals, allele frequencies can change. ____
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T
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TRUE OR FALSE: 6. Founder effect and population bottlenecks are both examples of genetic drift. ____
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T
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TRUE OR FALSE: 7. Small scale shifts in allele frequencies is the defining characteristic of microevolution. ____
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T
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TRUE OR FALSE: 8. A population is a group of interbreeding members of the same species in a particular area.
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T
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1. Lateral roots are the product of the:
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* c) pericycle
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2. Stomata are responsible for:
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a) water escape from the leaves b) carbon dioxide entry
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3. Mesophyll consists of______
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* d) photosynthetic cells
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4. ___ apical meristem
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b. source of primary growth(lengthwise)
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5. ___ xylem
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a. conducts water
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6. ___ phloem
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d. conducts sugars
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7. __ lateral meristem
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c. source of secondary growth(girthwise)
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True or False 8. Procambium gives rise to vascular tissue. ______
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T
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True or False 9. Monocots have netlike leaf veins.______
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F
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True or False 10. Parenchyma is dermal tissue.______
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F
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True or False 11. Dicots have tap root system. ______
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T
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12.____ ethylene
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d. promotes fruit ripening
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13.____ abscisic acid(ABA)
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b. inhibits plant growth
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14.____ Auxin
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a. promotes plant growth
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TRUE or FALSE 1. Adipose tissue cells are filled with lipids. ______
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T
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TRUE or FALSE 2. Glial cells conduct nerve impulses while neurons support the glial cells. ____
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F
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TRUE or FALSE 3. Endocrine glands produce and release hormones. ____
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T
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TRUE or FALSE 4. In negative feedback, the stimuli are intensified several folds before homeostasis is resumed. ____
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F
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TRUE or FALSE 5. The walls of the stomach are lined with skeletal muscle tissue_____
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F
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TRUE or FALSE 6. Collagen and elastin are typically found in connective tissue_____
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T
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TRUE or FALSE 7. The function of simple squamous is diffusion. ____
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T
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TRUE or FALSE 8. Simple columnar epithelium is found in the lining of gut and respiratory tract. ___
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T
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TRUE or FALSE 9. The outer layer of skin is consisted of simple epithelium. ____
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F
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10. Striated and involuntary muscle
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* a. cardiac muscle
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11. Glands are derived from:
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* c) epithelial tissue
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12. ____ is a specialized connective tissue that contains chondrocytes.
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* a) cartilage
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13. Tendons and ligaments consist of:
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* b) dense connective tissue
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14. A heat-sensitive neuron in your skin is an example of a:
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* a) sensory receptor
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1. Which of the blood components below contains the oxygen-transporting protein hemoglobin?
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* c) red blood cells
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2. Respiration is controlled by sensors and effectors in the brain and carotid arteries that respond to a rise in _______ by _______ the rate of breathing.
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* d) CO2; increasing
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3. Which ABO blood type is known as the universal donor?
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* d) O
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4. Which of the following is not a component of plasma
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* d) red blood cells
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5. Which of the following is NOT involved in the formation of a blood clot?
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* a) albumin
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6. Four of the five answers listed below are components of the human respiratory system. Select the exception.
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* e) esophagus
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7. What is the hormone that stimulates the bone marrow to produce more red blood cells?
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* b) erythropoietin
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8. Excitation for a heartbeat is initiated in the:
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* a) sinoatrial (SA) node
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TRUE or FALSE 9. Plasma is the cellular portion of blood___
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F
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TRUE or FALSE 10. Humans have open circulatory system___
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F
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TRUE or FALSE 11. Gas exchange takes place in alveoli. ___
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T
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12. ____ bradycardia
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f. a slower than normal heart rate
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13. ____ right atrium
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d. receives blood from body
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14. ____ left atrium
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b. receives blood from lungs
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15. ____ right ventricle
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e. pumps blood to lungs
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16. ____ left ventricle
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a. pumps blood to body
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17. ____ tachycardia
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c. a faster than normal heart rate
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1. ____Are barriers to pathogens at body surfaces.
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a) intact skin and mucous membranes b) tears and saliva c) resident bacteria
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2. ______ are molecules that macrophages recognize as self and will not elicit an immune response.
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* b) MHC
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3. Macrophages are derived from____
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* c) monocytes
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4. Immunoglobulins designated___is involved in histamine release.
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* c) IgE
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5. Memory cells are__________ that function in___________.
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* d) B cells; retaining the ability to make an antibody used to fight a previous infection
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TRUE or FALSE 6. Eosinophils are the most abundant leukocytes(WBC ) in blood.
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F
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TRUE or FALSE 7. Inflammation is a non-specific immune response.
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T
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TRUE or FALSE 8. T-cell lymphocytes originate and mature in the bone marrow.
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F
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TRUE or FALSE 9. Activated complement system is a part of the first line of defense.
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F
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TRUE or FALSE 10. Effector helper T-cells are needed for antibody mediated immune response.
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T
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1. Digestive organ that is responsible for re-absorption of water and the concentration of food residues:
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*d. large intestine
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2. Which of the following molecules digests proteins?
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*a. pepsin
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3. Four of the five answers listed below are functions of the digestive organs. Select the exception.
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*e. gas exchange
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4. Which of the following is involved in lipid digestion?
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*a. bile
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TRUE or FALSE 5. Flatworms have complete digestive systems. ___
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F
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TRUE or FALSE 6. Salivary amylase is a protein digesting enzyme. ___
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F
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TRUE or FALSE 7. Vitamin K is synthesized by resident bacteria in the human duodenum. ___
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F
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TRUE or FALSE 8. Digestion of carbohydrates starts in the mouth. ___
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T
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1. Two species in the same habitat can coexist when they:
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a) differ in their use of resources b) share the same resource in different ways c) use the same resource at different times
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2. which of the following is not a type of symbiosis?
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* a) predation
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4. The brown headed cowbird is an example of a:
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* c) social parasite
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5. The revegetation of the area that was burnt by the recent fires is an example of:
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* b) secondary succession
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TRUE OR FALSE 6. Lice are ectoparasites.
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T
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TRUE OR FALSE 7. Mistletoe is an example of a hemiparasite.
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T
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TRUE OR FALSE 8. In commensalism both species benefit.
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F
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TRUE OR FALSE 9. Biodiversity tends to be higher in the polar regions and lower in the tropics.
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F
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TRUE OR FALSE 9. Biodiversity tends to be higher in the polar regions and lower in the tropics.
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F
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TRUE OR FALSE 9. Biodiversity tends to be higher in the polar regions and lower in the tropics.
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F
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