CLEP BIOLOGY EXAM STUDY GUIDE
UPDATED ACTUAL Questions and CORRECT
Answers
In which of the following ways do social insects
benefit most from having several types or castes
within the species? - CORRECT ANSWER - The specialized structure of each caste
permits division of labor and greater
efficiency
The greatest diversity of structure and of
methods of locomotion is exhibited in the
individuals of - CORRECT ANSWER - a phylum
Of the following, which is an example of a
mutualistic relationship? - CORRECT ANSWER - The protozoan Trichonympha digesting
wood in the gut of a termite
Evidence that multicellular green plants may
have evolved from green algae is best supported
by the fact that in both - CORRECT ANSWER - chlorophylls a and b are photosynthetic
pigments
All of the following statements concerning the
light-capturing reactions of photosynthesis are
true EXCEPT - CORRECT ANSWER - If captured, some of the energy of the
excited electrons is used to split carbon
dioxide into carbon and oxygen.
Which of the following statements best explains
the hypothesis that the development of sexual
reproduction has resulted in acceleration of the
rate of evolution? - CORRECT ANSWER - Sexual reproduction is more likely to result
in genetic recombination than is asexual
reproduction.
A frog skeletal muscle contracts in response to
an electrical stimulus. Increase of the stimulus
intensity by 50 percent will increase the strength
of response nearly 50 percent. If the intensity is
again increased 50 percent, the response will
increase only about another 25 percent. Further
increase in the stimulus intensity produces no
further increase in response. - CORRECT ANSWER - The fibers of a muscle have varying
thresholds for response
Nitrogen-containing waste products are excreted
as the result of the metabolism of which of the
following? - CORRECT ANSWER - Proteins
Deposits of coal in Greenland and the Antarctic
indicate that - CORRECT ANSWER - these regions were once thickly vegetated
Thirst, loss of weight, and sugar in the urine
result from the undersecretion of a hormone by
which of the following glands? - CORRECT ANSWER - Pancreas
Considering the role of mitochondria in cells,
,mitochondria would likely be most abundant in
which of the following? - CORRECT ANSWER - Cells of the heart muscle
All of the following statements about enzymes
are true EXCEPT - CORRECT ANSWER - Enzymes can function only within
living cells.
Which of the following is critical in limiting the
size to which an animal cell may grow? - CORRECT ANSWER - The ratio of cell surface to cell volume
Which of the following best describes the
effect on heart action of the stimulation of the
parasympathetic nerve fibers of the vagus nerve? - CORRECT ANSWER - There is a decrease in the heartbeat
rate.
If poorly drained soils encourage the growth
of bacteria that convert nitrate to nitrogen, the
effect on higher plants will be to - CORRECT ANSWER - decrease protein production
A patient is placed on a restricted diet of water,
pure cooked starch, olive oil, adequate minerals,
and vitamins. If a urinalysis several weeks later
reveals the presence of relatively normal amounts
of urea, the urea probably came from the - CORRECT ANSWER - deamination of cellular proteins
The codon for a particular amino acid is
5'CAU3'. The DNA sequence that complements
this codon is - CORRECT ANSWER - 3'GTA5'
Viral DNA would be most likely to contain
genes that code for - CORRECT ANSWER - viral-coat protein
Which of the following statements about
imprinting is NOT true? - CORRECT ANSWER - The behavior pattern associated with
imprinting is the result of reward or
punishment.
Which of the following is the final electron
acceptor in the mitochondrial electron transport
system? - CORRECT ANSWER - O2
In a eukaryotic cell, glycolysis occurs in which
of the following parts of the cell? - CORRECT ANSWER - Cytosol
The clotting process in blood is initiated by - CORRECT ANSWER - platelets
Which of the following membranes is correctly
matched to its function? - CORRECT ANSWER - Dura mater .. brain protection
Which of the following statements best describes
the movement of energy in an ecosystem? - CORRECT ANSWER - Radiant energy is converted into chemical
energy in plant photosynthesis and then
released as heat energy during cellular
respiration.
Which of the following elements is correctly
linked to its role in a living organism? - CORRECT ANSWER - Carbon .. component of lipids
Mistletoe is attached to the branches of trees
such as sweet gum, from which it obtains water
, and some nutrients. Due to this association,
tree growth may be diminished. Which of the
following terms describes the relationship
between the two plants? - CORRECT ANSWER - Parasitism
AMP is which type of molecule? - CORRECT ANSWER - A nucleotide
Which of the following is generally true about
bacterial viruses? - CORRECT ANSWER - They inject their nucleic acids into the cells
that they infect.
A typical photosynthetic eukaryotic cell
contains which of the following?
I. Ribosomes
II. Chloroplasts
III. Mitochondria - CORRECT ANSWER - I, II, and III
Which of the following pairs of organisms are
most closely related? - CORRECT ANSWER - Canis latrans and Canis lupus
Which of the following is an example of a
testcross? - CORRECT ANSWER - A? x aa. The other half of the first one is unknown.
The process by which a zygote is formed - CORRECT ANSWER - Fertilization
The process by which the nuclei of somatic
(body) cells divide - CORRECT ANSWER - Mitosis
The process by which haploid cells are formed
from diploid cells - CORRECT ANSWER - Meiosis
Birds are most closely related to which class? - CORRECT ANSWER - Reptiles
Which class includes animals that have a moist
skin as the primary organ for gas exchange in
the adults? - CORRECT ANSWER - Amphibians
Which class includes whales? - CORRECT ANSWER - mammals
Members of which class produce milk for their
young in specialized skin glands? - CORRECT ANSWER - mammals
Which class includes snakes? - CORRECT ANSWER - Reptiles
Questions 45-47
Inheritance of certain characteristics of the fruit fly,
Drosophila, is as indicated by the table below.
Characteristic Dominant Recessive
Body color . . . . . . . Gray Black
Eye color . . . . . . . . Red White
A female fruit fly had a gray body and white eyes.
After being mated with a male fruit fly, she laid
112 eggs that developed into the following kinds
of offspring.
Number Body Eyes
28 Gray Red
29 Gray White
28 Black Red
27 Black White - CORRECT ANSWER - 45. With respect to body color, the male parent of
the 112 offspring was most probably
UPDATED ACTUAL Questions and CORRECT
Answers
In which of the following ways do social insects
benefit most from having several types or castes
within the species? - CORRECT ANSWER - The specialized structure of each caste
permits division of labor and greater
efficiency
The greatest diversity of structure and of
methods of locomotion is exhibited in the
individuals of - CORRECT ANSWER - a phylum
Of the following, which is an example of a
mutualistic relationship? - CORRECT ANSWER - The protozoan Trichonympha digesting
wood in the gut of a termite
Evidence that multicellular green plants may
have evolved from green algae is best supported
by the fact that in both - CORRECT ANSWER - chlorophylls a and b are photosynthetic
pigments
All of the following statements concerning the
light-capturing reactions of photosynthesis are
true EXCEPT - CORRECT ANSWER - If captured, some of the energy of the
excited electrons is used to split carbon
dioxide into carbon and oxygen.
Which of the following statements best explains
the hypothesis that the development of sexual
reproduction has resulted in acceleration of the
rate of evolution? - CORRECT ANSWER - Sexual reproduction is more likely to result
in genetic recombination than is asexual
reproduction.
A frog skeletal muscle contracts in response to
an electrical stimulus. Increase of the stimulus
intensity by 50 percent will increase the strength
of response nearly 50 percent. If the intensity is
again increased 50 percent, the response will
increase only about another 25 percent. Further
increase in the stimulus intensity produces no
further increase in response. - CORRECT ANSWER - The fibers of a muscle have varying
thresholds for response
Nitrogen-containing waste products are excreted
as the result of the metabolism of which of the
following? - CORRECT ANSWER - Proteins
Deposits of coal in Greenland and the Antarctic
indicate that - CORRECT ANSWER - these regions were once thickly vegetated
Thirst, loss of weight, and sugar in the urine
result from the undersecretion of a hormone by
which of the following glands? - CORRECT ANSWER - Pancreas
Considering the role of mitochondria in cells,
,mitochondria would likely be most abundant in
which of the following? - CORRECT ANSWER - Cells of the heart muscle
All of the following statements about enzymes
are true EXCEPT - CORRECT ANSWER - Enzymes can function only within
living cells.
Which of the following is critical in limiting the
size to which an animal cell may grow? - CORRECT ANSWER - The ratio of cell surface to cell volume
Which of the following best describes the
effect on heart action of the stimulation of the
parasympathetic nerve fibers of the vagus nerve? - CORRECT ANSWER - There is a decrease in the heartbeat
rate.
If poorly drained soils encourage the growth
of bacteria that convert nitrate to nitrogen, the
effect on higher plants will be to - CORRECT ANSWER - decrease protein production
A patient is placed on a restricted diet of water,
pure cooked starch, olive oil, adequate minerals,
and vitamins. If a urinalysis several weeks later
reveals the presence of relatively normal amounts
of urea, the urea probably came from the - CORRECT ANSWER - deamination of cellular proteins
The codon for a particular amino acid is
5'CAU3'. The DNA sequence that complements
this codon is - CORRECT ANSWER - 3'GTA5'
Viral DNA would be most likely to contain
genes that code for - CORRECT ANSWER - viral-coat protein
Which of the following statements about
imprinting is NOT true? - CORRECT ANSWER - The behavior pattern associated with
imprinting is the result of reward or
punishment.
Which of the following is the final electron
acceptor in the mitochondrial electron transport
system? - CORRECT ANSWER - O2
In a eukaryotic cell, glycolysis occurs in which
of the following parts of the cell? - CORRECT ANSWER - Cytosol
The clotting process in blood is initiated by - CORRECT ANSWER - platelets
Which of the following membranes is correctly
matched to its function? - CORRECT ANSWER - Dura mater .. brain protection
Which of the following statements best describes
the movement of energy in an ecosystem? - CORRECT ANSWER - Radiant energy is converted into chemical
energy in plant photosynthesis and then
released as heat energy during cellular
respiration.
Which of the following elements is correctly
linked to its role in a living organism? - CORRECT ANSWER - Carbon .. component of lipids
Mistletoe is attached to the branches of trees
such as sweet gum, from which it obtains water
, and some nutrients. Due to this association,
tree growth may be diminished. Which of the
following terms describes the relationship
between the two plants? - CORRECT ANSWER - Parasitism
AMP is which type of molecule? - CORRECT ANSWER - A nucleotide
Which of the following is generally true about
bacterial viruses? - CORRECT ANSWER - They inject their nucleic acids into the cells
that they infect.
A typical photosynthetic eukaryotic cell
contains which of the following?
I. Ribosomes
II. Chloroplasts
III. Mitochondria - CORRECT ANSWER - I, II, and III
Which of the following pairs of organisms are
most closely related? - CORRECT ANSWER - Canis latrans and Canis lupus
Which of the following is an example of a
testcross? - CORRECT ANSWER - A? x aa. The other half of the first one is unknown.
The process by which a zygote is formed - CORRECT ANSWER - Fertilization
The process by which the nuclei of somatic
(body) cells divide - CORRECT ANSWER - Mitosis
The process by which haploid cells are formed
from diploid cells - CORRECT ANSWER - Meiosis
Birds are most closely related to which class? - CORRECT ANSWER - Reptiles
Which class includes animals that have a moist
skin as the primary organ for gas exchange in
the adults? - CORRECT ANSWER - Amphibians
Which class includes whales? - CORRECT ANSWER - mammals
Members of which class produce milk for their
young in specialized skin glands? - CORRECT ANSWER - mammals
Which class includes snakes? - CORRECT ANSWER - Reptiles
Questions 45-47
Inheritance of certain characteristics of the fruit fly,
Drosophila, is as indicated by the table below.
Characteristic Dominant Recessive
Body color . . . . . . . Gray Black
Eye color . . . . . . . . Red White
A female fruit fly had a gray body and white eyes.
After being mated with a male fruit fly, she laid
112 eggs that developed into the following kinds
of offspring.
Number Body Eyes
28 Gray Red
29 Gray White
28 Black Red
27 Black White - CORRECT ANSWER - 45. With respect to body color, the male parent of
the 112 offspring was most probably
