AP Biology Ch 6 - Introduction to Metabolism - Test Questions With Complete Solutions

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? A) catalysis B) metabolism C) anabolism D) dehydration E) catabolism correct answer: E) catabolism (catabolism = bigger into smaller) Which of the following IS (are) true for anabolic pathways? A) They do not depend on enzymes. B) They are usually highly spontaneous chemical reactions. C) They consume energy to build up polymers from monomers. D) They release energy as they degrade polymers to monomers. correct answer: C) They consume energy to build up polymers from monomers Which of the following is a statement of 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) Kinetic energy is stored energy that results from the specific arrangement of matter. E) Energy cannot be transferred or transformed. correct answer: A) Energy cannot be created or destroyed. (1ST law - principle of conservation of energy) For living organisms, which of the following is an important consequence of the first law of thermodynamics? A) The energy content of an organism is constant. B) The 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 are unable to transform energy. E) Life does not obey the first law of thermodynamics. correct answer: B) The organism ultimately must obtain all of the necessary energy for life from its environment. Whenever energy is transformed, there is alway