ACTUAL QUESTIONS AND CERTIFIED RELIABLE ANSWERS (100%
VERIFIED ANSWERS) 2026/2027 BRAND NEW EXAM!!
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,MULTIPLE CHOICES
1) Which of the following statements is true of metabolism in its entirety in all organisms?
A) Metabolism depends on a constant supply of energy from food.
B) Metabolism uses all of an organism's resources.
C) Metabolism consists of all the energy transformation reactions in an organism.
D) Metabolism manages the increase of entropy in an organism.
C) Metabolism consists of all the energy transformation reactions in an organism.
2) Which of the following is an example of potential rather than kinetic energy?
A) water rushing over Niagara Falls
B) light flashes emitted by a firefly
C) a molecule of glucose
D) a crawling beetle foraging for food
C) a molecule of glucose
3) Most cells cannot harness heat to perform work because ________.
A) heat is not a form of energy
B) temperature is usually uniform throughout a cell
C) heat can never be used to do work
D) heat must remain constant during work
B) temperature is usually uniform throughout a cell
4) A decrease in entropy is associated with which type of reaction?
A) dehydration
B) catabolic
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,C) depolymerization
D) hydrolysis
A) dehydration
5) Which of the following terms most precisely describes the cellular process of breaking
down
large molecules into smaller ones?
A) catabolism (catabolic pathways)
B) metabolism
C) anabolism (anabolic pathways)
D) dehydration
A) catabolism (catabolic pathways)
6) Which of the following statements about anabolic pathways is true?
A) They are usually spontaneous chemical reactions.
B) They consume energy to build up polymers from monomers.
C) They release energy by degrading polymers to monomers.
D) They decrease the entropy of the organism and its environment.
B) They consume energy to build up polymers from monomers.
7) Which of the following statements describes the first law of thermodynamics?
A) Energy cannot be created or destroyed.
B) The entropy of the universe is decreasing.
C) The entropy of the universe is constant.
D) Energy cannot be transferred or transformed.
A) Energy cannot be created or destroyed.
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, 8) Which of the following statements is an important consequence of the first law of
thermodynamics for a living organism?
A) The energy content of an organism is constant.
B) An organism ultimately must obtain all of the necessary energy for life from its environment.
C) The entropy of an organism decreases with time as the organism grows in complexity.
D) Organisms grow by converting energy into organic matter.
B) An organism ultimately must obtain all of the necessary energy for life from its environment.
9) Living organisms increase in complexity as they grow, resulting in a decrease in the
entropy
of an organism. How does this relate to the second law of thermodynamics?
A) Living organisms do not obey the second law of thermodynamics, which states that the
entropy of an organism increases with each energy transformation.
B) The decrease in entropy is associated with growth of an organism. As a consequence of
growth, organisms cause a greater increase in entropy in their environment than the decrease in
entropy associated with their increased complexity.
C) As a consequence of growth, the decrease in entropy of the organism is associated with a
corresponding decrease in the entropy of the universe.
D) Living organisms are able to transform chemical energy into entropy.
Answer: B
B) The decrease in entropy is associated with growth of an organism. As a consequence of
growth, organisms cause a greater increase in entropy in their environment than the decrease in
entropy associated with their increased complexity.
10) Which of the following statements is a logical consequence of the second law of
thermodynamics?
A) If the entropy of a system increases, there must be a corresponding decrease in the entropy of
the universe.
B) If the entropy of a system decreases, there must be a corresponding decrease in the entropy of
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