question

Which of the following contain prokaryotic cells?

answer

* a) the archaea

question

2. The molecule associated with energy transfer in living organisms is:

answer

* c) ATP

question

3. A community and its physical and chemical environment constitute:

answer

*c) an ecosystem

question

3. A community and its physical and chemical environment constitute:

answer

*c) an ecosystem

question

4. The molecule of inheritance is:

answer

*a) deoxyribonucleic acid

question

5. Which of the following is not a requirement of all living things:

answer

*d) aerobic respiration

question

6. The one-way flow of energy through the biosphere starts with energy input from:

answer

* b) the sun

question

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:

answer

* d) Homo sapiens (italicized)

question

TRUE OR FALSE 8. Decomposers include certain bacteria and fungi.

answer

T

question

TRUE OR FALSE 9. Sexual reproduction results in offspring that are genetically identical to the parent.

answer

F

question

1. The atom of element Phosphorus has 16 neutrons and 15 electrons. What is the atomic number for Phosphorus atom?_____________

answer

15

question

2. Element Helium(He) has atomic number of 2. Do you consider this element reactive or inert?

answer

inert

question

3. Atoms gain or lose electrons to form

answer

* a) ionic bonds

question

4. The normal range of blood pH indicates:

answer

* a) 7.3-7.5

question

5. Two atoms of oxygen are bond together by double covalent bond. How many electrons do they share?

answer

* b) 4

question

True or False 6. Neutrons are negatively charged

answer

F

question

True or False 7. Water is a great solvent of polar molecules

answer

T

question

True or False 8. In a polar covalent bond, electrons are equally shared

answer

F

question

1. Loss of a proteins normal 3-D shape because of high temperatures or changes in pH is called:

answer

* b) denaturation

question

TRUE OR FALSE 2. In a condensation reaction, small molecules come together to make a large molecule.

answer

T

question

TRUE OR FALSE 3. Ribose is a 6-carbon monosaccharide.

answer

F

question

4. ____ building blocks of nucleic acids are

answer

c. nucleotides

question

5. ____ building blocks of proteins are

answer

e. amino acids

question

6. ____ building blocks of most lipids are glycerol and

answer

g.fatty acids

question

7. ____ building blocks of carbohydrates are

answer

b. monosaccharides

question

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. ____

answer

F

question

True or False: 2. In active transport solutes are transported down their concentration gradient. ____

answer

F

question

True or False: 3. Phospholipids contain a hydrophobic head and two hydrophillic tails. ___

answer

F

question

4. Plant cells but not animal cells have:

answer

c) plastids d) central vacuole

question

5. ____ synthesis of proteins takes place in

answer

l. rough ER

question

6. ____ photosynthesis takes place in

answer

h. chloroplasts

question

7. ____ synthesis of lipids takes place in

answer

k. smooth ER

question

8. ____ modify, sort, package ;ship proteins

answer

j. Golgi bodies

question

9. ___ provide movement for the cells

answer

n.flagella

question

10. ____ digestion in the cell is done by

answer

c. lysosomes

question

11.____ ATP is produced in

answer

a.mitochondrion

question

1. The final product(s) of glycolysis include:

answer

b) pyruvate molecules c) ATP

question

2. Oxygen is formed during:

answer

*a) the non-cyclic pathway of ATP formation

question

3. Cells ability to acquire energy and use it to, store, build, or break apart substances is called:

answer

* d) metabolism

question

4. Enzymes

answer

a) speed up metabolic reactions b) lower the activation energy

question

True or False: 5. In the non-cyclic pathway of the light-dependent stage of photosynthesis, two photosystems are involved.

answer

T

question

True or False: 6. Glucose is formed in the light-dependent stage of photosynthesis. ____

answer

F

question

True or False: 7. The starting molecule in glycolysis is pyruvate. ____

answer

F

question

True or False: 8. Krebs cycle of aerobic respiration takes place in the cytoplasm.

answer

F

question

True or False: 9. CO2 is released during Krebs(citric acid) cycle. ____

answer

T

question

True or False: 10. Light-independent stage of photosynthesis takes place in the grana. ____

answer

F

question

True or False: 11. In exergonic reactions, energy is released. ____

answer

T

question

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

answer

5 T-A-G-C-A-A-C-T-G-T-A-A 3

question

2) One species DNA differs from others in its

answer

* c) nucleotide sequence

question

3) DNA replication results in

answer

* b) two molecules, each with one old strand and one newly assembled strand of nucleotides

question

4.___DNA binding proteins

answer

d.stabilize the single-stranded DNA ; keep the strands apart

question

5.___DNA polymerase

answer

a.adds DNA nucleotides to the primer to build the new strand

question

6.___ligase

answer

b. joins Okazaki fragments seals small gaps

question

7.___helicase

answer

f. unwinds parental DNA double helix

question

8.___Primase

answer

e.produces ; adds primers to template strand

question

9. __Watson ; Crick

answer

c. discovered the double helix structure of DNA

question

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

answer

mRNA 5A-U-G-U-A-U-U-C-C-U-U-A-A-G-A-U-G-A3

question

For how many amino acids does this mRNA sequence code?

answer

5

question

2. The RNA molecule is

answer

* b) single-stranded

question

3. mRNA is produced by

answer

* b) transcription

question

4. The five-carbon sugar found in RNA is:

answer

* b) ribose

question

5. The loading of mRNA onto an intact ribosome occurs during

answer

* a) translation

question

TRUE OR FALSE 6. The enzyme used during transcription is DNA polymerase._____

answer

F

question

TRUE OR FALSE 7. A codon is a double nucleotide on mRNA.____

answer

F

question

8.___ initiation

answer

b.the first tRNA carrying methionine binds ribosome and mRNA

question

9.___ elongation

answer

e. tRNA molecules carrying amino acids add to the growing polypeptide chain

question

10.___ termination

answer

d. a stop codon is reached

question

TRUE OR FALSE 1) In animals cells, cytoplasmic division is done by furrowing. ____

answer

T

question

TRUE OR FALSE 2) Nuclear membrane begins to break down in prophase. ____

answer

T

question

TRUE OR FALSE 3) Chromosomes are at their maximum condensation in telophase. ____

answer

F

question

TRUE OR FALSE 4) Random alignment of the homologous chromosomes happens at metaphase I. ____

answer

T

question

TRUE OR FALSE 5) There are two nuclear divisions in mitosis and one nuclear division in meiosis. _____

answer

F

question

TRUE OR FALSE 6) Mitosis and cytokinesis give rise to two clones (genetically identical cells). ___

answer

T

question

TRUE OR FALSE 7) A human primary oocyte can give rise to only one viable egg. ___

answer

T

question

8) Sister-chromatids are lined up at the equator of the spindle at:

answer

* a) metaphase stage of mitosis

question

9) Chromosomes are duplicated in:

answer

* c) the S stage of interphase

question

10) Crossing over

answer

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

question

TRUE OR FALSE: 1) A homozygote has a pair of identical alleles whereas a heterozygote has a pair of nonidentical alleles.

answer

T

question

TRUE OR FALSE: 2) Pink color of flowers produced by snapdragon plants is an outcome of incomplete dominance.

answer

T

question

TRUE OR FALSE: 3) If a womans genotype at the ABO locus is IA i, her blood type is O.

answer

F

question

TRUE OR FALSE: 4) Pleiotropy refers to traits which are resulted from multiple genes.

answer

F

question

TRUE OR FALSE: 5) AB blood type is an outcome of co-dominance.

answer

T

question

TRUE OR FALSE: 6) Breast cancer is a sex-limited trait.

answer

T

question

TRUE OR FALSE: 7) Mendel performed dihybrid crosses to text his theory of independent assortment.

answer

T

question

TRUE OR FALSE: 8) Most of human traits are multifactorial traits.

answer

T

question

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?

answer

* 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!

question

10) The F2 phenotypic ratio of Mendels monohybrid cross is

answer

* e) 3:1

question

11) Gregor Mendel discovered:

answer

* c) the theory of independent assortment

question

12) The phenotype of an organism:

answer

a) are the traits of that organism b) is affected by the environment c) is affected by its genotype

question

13) Offspring of the cross AA* aa are:

answer

* c) all Aa

question

14) The F2 phenotypic ratio of Mendels dihybrid cross is

answer

* c) 9:3:3:1

question

15) The F2 genotype ratio of Mendels monohybrid cross is

answer

* d) 1:2:1

question

1. Sickle cell disease illustrates a balanced polymorphism because carriers are resistant to:

answer

* d. malaria

question

2. Forces that change allele frequencies include:

answer

a. natural selection b. migration c. genetic drift d. mutation

question

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.

answer

* b. population bottleneck

question

4. Albinism in uncommon in the United States but affects 1/200 Hopi Indians. A contributing factor for this high increase is:

answer

* a. nonrandom mating

question

TRUE OR FALSE: 5. If a population migrates and picks up new individuals, allele frequencies can change. ____

answer

T

question

TRUE OR FALSE: 6. Founder effect and population bottlenecks are both examples of genetic drift. ____

answer

T

question

TRUE OR FALSE: 7. Small scale shifts in allele frequencies is the defining characteristic of microevolution. ____

answer

T

question

TRUE OR FALSE: 8. A population is a group of interbreeding members of the same species in a particular area.

answer

T

question

1. Lateral roots are the product of the:

answer

* c) pericycle

question

2. Stomata are responsible for:

answer

a) water escape from the leaves b) carbon dioxide entry

question

3. Mesophyll consists of______

answer

* d) photosynthetic cells

question

4. ___ apical meristem

answer

b. source of primary growth(lengthwise)

question

5. ___ xylem

answer

a. conducts water

question

6. ___ phloem

answer

d. conducts sugars

question

7. __ lateral meristem

answer

c. source of secondary growth(girthwise)

question

True or False 8. Procambium gives rise to vascular tissue. ______

answer

T

question

True or False 9. Monocots have netlike leaf veins.______

answer

F

question

True or False 10. Parenchyma is dermal tissue.______

answer

F

question

True or False 11. Dicots have tap root system. ______

answer

T

question

12.____ ethylene

answer

d. promotes fruit ripening

question

13.____ abscisic acid(ABA)

answer

b. inhibits plant growth

question

14.____ Auxin

answer

a. promotes plant growth

question

TRUE or FALSE 1. Adipose tissue cells are filled with lipids. ______

answer

T

question

TRUE or FALSE 2. Glial cells conduct nerve impulses while neurons support the glial cells. ____

answer

F

question

TRUE or FALSE 3. Endocrine glands produce and release hormones. ____

answer

T

question

TRUE or FALSE 4. In negative feedback, the stimuli are intensified several folds before homeostasis is resumed. ____

answer

F

question

TRUE or FALSE 5. The walls of the stomach are lined with skeletal muscle tissue_____

answer

F

question

TRUE or FALSE 6. Collagen and elastin are typically found in connective tissue_____

answer

T

question

TRUE or FALSE 7. The function of simple squamous is diffusion. ____

answer

T

question

TRUE or FALSE 8. Simple columnar epithelium is found in the lining of gut and respiratory tract. ___

answer

T

question

TRUE or FALSE 9. The outer layer of skin is consisted of simple epithelium. ____

answer

F

question

10. Striated and involuntary muscle

answer

* a. cardiac muscle

question

11. Glands are derived from:

answer

* c) epithelial tissue

question

12. ____ is a specialized connective tissue that contains chondrocytes.

answer

* a) cartilage

question

13. Tendons and ligaments consist of:

answer

* b) dense connective tissue

question

14. A heat-sensitive neuron in your skin is an example of a:

answer

* a) sensory receptor

question

1. Which of the blood components below contains the oxygen-transporting protein hemoglobin?

answer

* c) red blood cells

question

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.

answer

* d) CO2; increasing

question

3. Which ABO blood type is known as the universal donor?

answer

* d) O

question

4. Which of the following is not a component of plasma

answer

* d) red blood cells

question

5. Which of the following is NOT involved in the formation of a blood clot?

answer

* a) albumin

question

6. Four of the five answers listed below are components of the human respiratory system. Select the exception.

answer

* e) esophagus

question

7. What is the hormone that stimulates the bone marrow to produce more red blood cells?

answer

* b) erythropoietin

question

8. Excitation for a heartbeat is initiated in the:

answer

* a) sinoatrial (SA) node

question

TRUE or FALSE 9. Plasma is the cellular portion of blood___

answer

F

question

TRUE or FALSE 10. Humans have open circulatory system___

answer

F

question

TRUE or FALSE 11. Gas exchange takes place in alveoli. ___

answer

T

question

12. ____ bradycardia

answer

f. a slower than normal heart rate

question

13. ____ right atrium

answer

d. receives blood from body

question

14. ____ left atrium

answer

b. receives blood from lungs

question

15. ____ right ventricle

answer

e. pumps blood to lungs

question

16. ____ left ventricle

answer

a. pumps blood to body

question

17. ____ tachycardia

answer

c. a faster than normal heart rate

question

1. ____Are barriers to pathogens at body surfaces.

answer

a) intact skin and mucous membranes b) tears and saliva c) resident bacteria

question

2. ______ are molecules that macrophages recognize as self and will not elicit an immune response.

answer

* b) MHC

question

3. Macrophages are derived from____

answer

* c) monocytes

question

4. Immunoglobulins designated___is involved in histamine release.

answer

* c) IgE

question

5. Memory cells are__________ that function in___________.

answer

* d) B cells; retaining the ability to make an antibody used to fight a previous infection

question

TRUE or FALSE 6. Eosinophils are the most abundant leukocytes(WBC ) in blood.

answer

F

question

TRUE or FALSE 7. Inflammation is a non-specific immune response.

answer

T

question

TRUE or FALSE 8. T-cell lymphocytes originate and mature in the bone marrow.

answer

F

question

TRUE or FALSE 9. Activated complement system is a part of the first line of defense.

answer

F

question

TRUE or FALSE 10. Effector helper T-cells are needed for antibody mediated immune response.

answer

T

question

1. Digestive organ that is responsible for re-absorption of water and the concentration of food residues:

answer

*d. large intestine

question

2. Which of the following molecules digests proteins?

answer

*a. pepsin

question

3. Four of the five answers listed below are functions of the digestive organs. Select the exception.

answer

*e. gas exchange

question

4. Which of the following is involved in lipid digestion?

answer

*a. bile

question

TRUE or FALSE 5. Flatworms have complete digestive systems. ___

answer

F

question

TRUE or FALSE 6. Salivary amylase is a protein digesting enzyme. ___

answer

F

question

TRUE or FALSE 7. Vitamin K is synthesized by resident bacteria in the human duodenum. ___

answer

F

question

TRUE or FALSE 8. Digestion of carbohydrates starts in the mouth. ___

answer

T

question

1. Two species in the same habitat can coexist when they:

answer

a) differ in their use of resources b) share the same resource in different ways c) use the same resource at different times

question

2. which of the following is not a type of symbiosis?

answer

* a) predation

question

4. The brown headed cowbird is an example of a:

answer

* c) social parasite

question

5. The revegetation of the area that was burnt by the recent fires is an example of:

answer

* b) secondary succession

question

TRUE OR FALSE 6. Lice are ectoparasites.

answer

T

question

TRUE OR FALSE 7. Mistletoe is an example of a hemiparasite.

answer

T

question

TRUE OR FALSE 8. In commensalism both species benefit.

answer

F

question

TRUE OR FALSE 9. Biodiversity tends to be higher in the polar regions and lower in the tropics.

answer

F

question

TRUE OR FALSE 9. Biodiversity tends to be higher in the polar regions and lower in the tropics.

answer

F

question

TRUE OR FALSE 9. Biodiversity tends to be higher in the polar regions and lower in the tropics.

answer

F

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

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