Instructions:
Put your name and student ID number on both the test and
the scantron.
On your scantron, bubble in your student ID number. Bubble in the test
version.
Only use pencil (spare ones up front). Erase stray marks fully. No stray marks
in the row of black lines.
On your scantron, identify the letter of the choice that best
completes the statement or answers the question.
If you think there is an error on the test,
make a note on your test (not the scantron) and tell the instructor on the way out.
Double
check your scantron for "double bubbles" or missing answers. There is no penalty for
guessing.
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1.
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The most successful forms of life that have ever evolved are the
a. | vertebrates. | b. | insects. | c. | humans. | d. | protozoans. | e. | mollusks |
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2.
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The light-independent reactions proceed in the _____ .
a. | cytoplasm | b. | plasma membrane | c. | stroma |
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3.
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The probability of a crossover occurring between two genes on the same
chromosome is _____ .
a. | unrelated to the distance between them | b. | increased if they are closer together on the
chromosome | c. | increased if they are farther apart on the chromosome |
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4.
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Mitosis takes place in which region of the root?
a. | zone of maturation | b. | root cap | c. | zone of
elongation | d. | apical meristem region | e. | region of
differentiation |
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5.
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Only _____ have a notochord, a tubular dorsal nerve cord, a pharynx with slits
in the walls, and a tail extending past the anus.
a. | echinoderms | b. | tunicates and lancelets | c. | vertebrates | d. | both b and c | e. | all of the
above |
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6.
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The carbon source for organisms that derive their energy from photosynthesis
is
a. | carbon monoxide. | b. | carbon dioxide. | c. | hydrocarbons. | d. | methane. | e. | glucose. |
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7.
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Directional selection occurs when
a. | the environment controls which organisms will survive. | b. | humans determine
which organisms will survive. | c. | the extremes of the population have a lesser
chance to survive. | d. | the extremes of the population have a better
chance to survive. | e. | the organisms on one extreme of the population
have a better chance to survive than do those on the other extreme. |
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8.
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From X-ray diffraction data, which of the following was determined about
DNA?
a. | The molecule had uniform diameter. | b. | The molecule was long and
narrow. | c. | Part of the molecule repeated itself often. | d. | The shape of the
molecule could be spiral. | e. | all of these |
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9.
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A seed leaf is which of the following?
a. | embryo | b. | coleoptile | c. | endosperm | d. | cotyledon | e. | suspensor |
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10.
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Birds differ from earlier vertebrates by
a. | their lack of scales. | b. | the land egg. | c. | the ability to
maintain a constant body temperature. | d. | the ability to fertilize eggs
internally. | e. | their possession of a dorsal nerve cord. |
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11.
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The chemical processes in the living cell are collectively called
a. | adaptation. | b. | homeostasis. | c. | evolution. | d. | respiration. | e. | metabolism. |
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12.
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In the bonding of nitrogenous bases
a. | adenine is paired with cytosine. | b. | adenine is paired with
guanine. | c. | cytosine is paired with thymine. | d. | guanine is paired with
cytosine. |
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13.
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Transcription
a. | occurs on the surface of the ribosome. | b. | is the final process in the assembly of a
protein. | c. | occurs during the synthesis of any type of RNA from a DNA
template. | d. | is catalyzed by DNA polymerase. | e. | all of these |
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14.
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Which of the following is NOT part of the appendicular skeleton?
a. | clavicle | b. | scapula | c. | fibula | d. | ribs | e. | patella |
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15.
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The nutrition of some plants depends on a root-fungus association known as a
_____ .
a. | root nodule | b. | mycorrhiza | c. | root
hair | d. | root hypha |
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16.
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Does the loop of Henle concentrate urine?
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17.
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What are the base-pairing rules for DNA?
a. | A-G, T-C | b. | A-C, T-G | c. | A-U,
C-G | d. | A-T, G-C |
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18.
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Water droplets form on the outside of a cold soda can because
a. | the can "sweats" water. | b. | static electricity attracts water to the
can. | c. | sonic vibrations shake the water from the inside of the can to the
outside. | d. | None of the above. |
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19.
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After a myosin head has performed a power stroke, it must first bind to _____ in
order to perform another power stroke.
a. | actin | b. | troponin | c. | tropomyosin | d. | myosin | e. | ATP |
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20.
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Atoms share electrons unequally in a (an) ______ bond.
a. | ionic | b. | nonpolar covalent | c. | polar
covalent | d. | hydrogen |
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21.
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Alleles are _____ .
a. | different molecular forms of a gene | b. | different phenotypes | c. | self-fertilizing,
true-breeding homozygotes |
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22.
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PCR stands for
a. | polymerase chain reaction | b. | polyploid chromosome
restrictions | c. | polygraphed criminal rating | d. | politically correct
research |
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23.
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Duplicated chromosomes move away from their homologue and end up at the opposite
spindle pole during _____ .
a. | prophase I | b. | prophase II | c. | anaphase
I | d. | anaphase II |
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24.
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The sex chromosome composition of a person with Turner syndrome is
a. | XXX. | b. | XO. | c. | XXY. | d. | XYY. | e. | none of
these |
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25.
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Whisk ferns, lycophytes, horsetails, and ferns are classified as _____
plants.
a. | multicelled aquatic | b. | nonvascular seed | c. | seedless
vascular | d. | seed-bearing vascular |
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26.
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In Argentina, Darwin noted the similarity of fossils of glyptodonts to
modern
a. | rodents. | b. | finches. | c. | turtles, | d. | armadillos. | e. | ostriches. |
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27.
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Which of the following is not a lymphocyte?
a. | B cell | b. | T cell | c. | Natural killer
cell | d. | Macrophage |
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28.
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Where in a plant cell is chlorophyll found?
a. | on the outer chloroplast membrane | b. | inside the mitochondria | c. | in the
stroma | d. | in the thylakoids | e. | none of these |
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29.
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Xylem and phloem are _____ tissues.
a. | ground | b. | vascular | c. | dermal | d. | both b and c |
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30.
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Enzymes
a. | are very specific. | b. | act as catalysts. | c. | are organic
molecules. | d. | have special shapes that control their activities. | e. | all of
these |
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31.
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These contain enzymes used in the breakdown of glucose and generation of
ATP.
a. | Golgi bodies | b. | ribosomes | c. | mitochondria | d. | lysosomes | e. | endoplasmic
reticula |
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32.
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Bacteriophages are
a. | large bacteria. | b. | pathogens (disease-producing
bacteria). | c. | viruses. | d. | cellular components. | e. | protistans. |
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33.
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Hydrophobic reactions of phospholipids may produce clusters of their fatty acid
tails, which form
a. | a lipid bilayer. | b. | hydrolysis of the fatty
acids. | c. | a protein membrane. | d. | a cytoskeleton. | e. | a nonpolar
membrane. |
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34.
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Hydrolysis is a (an) _____ reaction.
a. | functional group transfer | b. | electron transfer | c. | rearrangement | d. | condensation | e. | cleavage |
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35.
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Each codon calls for a specific
a. | protein | b. | polypeptide | c. | amino
acid | d. | carbohydrate |
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36.
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Hemophilia
a. | is rare in the human population. | b. | is more common among men. | c. | was common in
English royalty. | d. | is an X-linked recessive trait. | e. | all of these |
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37.
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Amniote eggs form during the life cycle of most _____ .
a. | reptiles | b. | birds | c. | mammals | d. | all of the
above |
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38.
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Amniocentesis involves sampling
a. | the fetus directly. | b. | the fetal cells floating in the amniotic
fluid. | c. | sperm. | d. | blood cells. | e. | placental
cells. |
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39.
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The nitrogenous base found in DNA but not in RNA is
a. | adenine. | b. | cytosine. | c. | guanine. | d. | uracil. | e. | thymine. |
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40.
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The Krebs cycle takes place in the
a. | ribosomes. | b. | cytoplasm. | c. | nucleus. | d. | mitochondria. | e. | chloroplasts. |
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41.
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An operator most typically governs _____ .
a. | bacterial genes | b. | a eukaryotic gene | c. | genes of all
types | d. | DNA replication |
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42.
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In the light-dependent reactions, _____ .
a. | carbon dioxide is fixed | b. | ATP and NADPH form | c. | CO2 accepts
electrons | d. | sugar phosphates form |
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43.
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The lactose operon includes
a. | an operator. | b. | three structural genes that manufacture
lactose-metabolizing enzymes. | c. | a promoter. | d. | a
repressor. | e. | an operator, three structural genes that manufacture lactose-metabolizing enzymes,
and a promoter. |
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44.
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The pressure in the pleural cavities is always lower than atmospheric
pressure.
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45.
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A molecule that gives up an electron becomes
a. | ionized | b. | oxidized | c. | reduced | d. | both ionized and oxidized. | e. | both ionized and
reduced. |
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46.
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Which of the following classes is represented only by fossil forms?
a. | Agnatha | b. | Amphibia | c. | Aves | d. | Placodermi | e. | Chondrichthyes |
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47.
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The plant hormone that promotes fruit ripening is
a. | auxin. | b. | gibberellin. | c. | cytokinin. | d. | florigen. | e. | ethylene. |
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48.
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The first group to exhibit an amniotic egg belonged to the
a. | Aves. | b. | Amphibia. | c. | Reptilia. | d. | Osteichthyes. | e. | Mammalia. |
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49.
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Sodium ions cross a membrane through transport proteins that receive an energy
boost. This is an example of _____ .
a. | passive transport | b. | active transport | c. | facilitated
diffusion | d. | a and c |
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50.
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Glycolysis
a. | occurs in the mitochondria. | b. | happens to glucose only. | c. | results in the
production of pyruvate. | d. | occurs in the cytoplasm. | e. | results in the
production of pyruvate and occurs in the cytoplasm. |
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51.
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Genetic disorders are caused by _____ .
a. | altered chromosome number | b. | altered chromosome
structure | c. | mutation | d. | all of the
above |
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52.
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The portion of the DNA molecule that is translated is composed of
a. | introns. | b. | anticodons. | c. | exons. | d. | transcriptons. | e. | both exons and
transcriptons but not introns or anticodons. |
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53.
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In alcoholic fermentation, _____ is the final acceptor of the electrons stripped
from glucose.
a. | oxygen | b. | pyruvate | c. | acetaldehyde | d. | sulfate |
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54.
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In the life cycle of primitive plants, which of the following
predominates?
a. | haploid stage | b. | diploid stage | c. | large sporophyte
body | d. | both diploid stage and large sporophyte body | e. | both haploid stage
and large sporophyte body |
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55.
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Sensroy axons enter the spinal cord through
a. | the dorsal roots. | b. | the ventral roots. | c. | the
pons. | d. | the sympathetic ganglia. |
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56.
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A recognized set ot symptoms that characterize a specific disorder is a _____
.
a. | syndrome | b. | disease | c. | pedigree |
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57.
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Interneurons
a. | connect a motor neuron and sensory neuron. | b. | determine whether a
particular motor neuron is excited or inhibited. | c. | become either sensory or motor neurons during
development. | d. | are described in both a and b. | e. | are described by none of the
above. |
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58.
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Which of the following adult tissues or organs arises from the mesoderm?
a. | Sense organs | b. | Nervous system | c. | Circulatory
system | d. | Respiratory tract | e. | Digestive tract |
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59.
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Stabilizing selection occurs when
a. | the environment controls which organisms will survive. | b. | humans determine
which organisms will survive. | c. | the extremes of the population have a lesser
chance to survive. | d. | the extremes of the population have a better
chance to survive. | e. | the organisms on one extreme of the population
have a better chance to survive than those on the other extreme. |
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60.
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Mast cells and _____ release histamine.
a. | neutrophils | b. | basophils | c. | eosinophils | d. | dendritic cells |
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61.
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Which type of cytoskeletal protein is responsible for the movement of
chromosomes during cell division?
a. | Intermediate filaments | b. | Microfilaments | c. | Microtubules |
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62.
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Mushrooms are members of which of the following?
a. | sac fungi | b. | club fungi | c. | imperfect
fungi | d. | water molds | e. | zygospore-forming
fungi |
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63.
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How many ATP molecules (net yield) are produced per molecule of glucose degraded
during glycolysis?
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64.
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The human axial skeleton includes all of the following EXCEPT
a. | skull. | b. | ribs. | c. | pectoral
girdle. | d. | sternum. | e. | vertebral
column. |
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65.
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The laboratory technique used to separate the DNA fragments produced by
automated DNA sequencing is
a. | the polymerase chain reaction. | b. | gel electrophoresis. | c. | ultracentrifugation. | d. | electron microscopy. | e. | fluorescence
microscopy. |
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66.
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The _____, which bears flowers, roots, stems, and leaves, dominates the life
cycle of flowering plants
a. | sporophyte | b. | gametophyte |
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67.
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Chromosome structure can be altered by a _____ .
a. | deletion | b. | duplication | c. | inversion | d. | translocation | e. | all of the
above |
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68.
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Various forms of a gene at a given locus are called
a. | chiasmata. | b. | alleles. | c. | autosomes. | d. | loci. | e. | chromatids. |
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69.
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What is starch?
a. | A disaccharide made of glucose monomers. | b. | A polysaccharide
formed by a series of condensation reactions. | c. | A storage polysaccharide found in
animals | d. | The most abundant organic material on earth. | e. | None of the
above. |
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70.
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The carbon dioxide acceptor in the Calvin-Benson cycle is
a. | phosphoglycerate (PGA). | b. | ribulose bisphosphate
(RuBP). | c. | phosphoglyceraldehyde (PGAL). | d. | glucose. | e. | oxaloacetate. |
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71.
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In phloem, organic compounds flow through _____ .
a. | collenchyma cells | b. | sieve tubes | c. | vessels | d. | tracheids |
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72.
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Reptiles moved fully onto land owing to _____ .
a. | tough skin | b. | internal fertilization | c. | good
kidneys | d. | amniote eggs | e. | all of the
above |
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73.
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The source region in the pressure flow explanation of phloem transport is most
often the
a. | root. | b. | flower. | c. | stem. | d. | leaf. | e. | soil. |
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74.
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Which phylum contains members that are notorious for causing serious diseaases
in humans?
a. | cnidarians | b. | flatworms | c. | segmented
worms | d. | chordates |
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75.
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The DNA fragments produced by automated DNA sequencing are identified
using
a. | radioactive probes. | b. | laser beams. | c. | ultracentrifugation. | d. | electron microscopy. | e. | restriction
enzymes. |
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76.
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For Mendel's explanation of inheritance to be correct,
a. | the genes for the traits he studied had to be located on the same
chromosome. | b. | which gametes combine at fertilization had to be due to chance. | c. | genes could not be
transmitted independently of each other. | d. | only diploid organisms would demonstrate
inheritance patterns. | e. | none of these |
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77.
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Two individuals are members of the same species if they
a. | possess the same number of chromosomes. | b. | breed at the same
time. | c. | are phenotypically indistinguishable. | d. | can mate and produce fertile
offspring. |
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78.
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Of all land plants, bryophytes alone have independent _____ and attached,
dependent _____ .
a. | sporophytes; gametophytes | b. | gametophytes; sporophytes | c. | rhizoids;
zygotes | d. | rhizoids; stalked sporangia |
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79.
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Each DNA strand has a backbone that consists of alternating
a. | purines and pyrimidines. | b. | nitrogen-containing bases. | c. | hydrogen
bonds. | d. | sugar and phosphate molecules. | e. | amines and
purines. |
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80.
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Assuming complete dominance, the F2 generation following the cross Aa x Aa will
show a phenotypic ratio of _____ .
a. | 3:1 | b. | 9:1 | c. | 1:2:1 | d. | 9:3:3:1 |
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81.
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Water transport from roots to leaves is explained by _____ .
a. | the pressure flow theory | b. | differences in source and sink solute
concentrations | c. | the pumping force of xylem vessels | d. | the cohesion-tension
theory |
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82.
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ATP is
a. | the energy currency of a cell. | b. | produced by the destruction of
ADP. | c. | expended in the process of photosynthesis. | d. | produced during the
phosphorylation of any organic compound. | e. | none of these |
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83.
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A locus is
a. | a recessive gene. | b. | an unmatched allele. | c. | a sex
chromosome. | d. | the location of an allele on a chromosome. | e. | a dominant
gene. |
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84.
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Electron transport systems involve _____ .
a. | enzymes, coenzymes | b. | electron transfers | c. | cell
membranes | d. | all of the above |
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85.
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Which of the following includes all the others?
a. | actin | b. | myofibril | c. | myosin | d. | myofilament | e. | muscle
cell |
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86.
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Seeds are mature _____; fruits are mature _____ .
a. | ovaries; ovules | b. | ovules; stamens | c. | ovules;
ovaries | d. | stamens; ovaries |
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87.
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The introduction of a small population onto an island that results in a limited
gene pool for a population best describes
a. | the Hardy-Weinberg law. | b. | genetic drift. | c. | the bottleneck
effect. | d. | the founder principle. | e. | the effect of genetic
isolation. |
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88.
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Identify which of the following substances accumulates inside the thylakoid
compartment of chloroplasts druing the light-dependent reactions:
a. | glucose | b. | carotenoids | c. | chlorophyll | d. | fatty acids | e. | hydrogen
ions |
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89.
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Georges Cuvier was a strong proponent of the theory of
a. | uniformity. | b. | relativity. | c. | catastrophism. | d. | natural selection. | e. | acquired
characteristics. |
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90.
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In spongy bone tissue the spaces are filled with
a. | air. | b. | blood. | c. | cartilage. | d. | marrow. | e. | lymph. |
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