MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Metabolism is best described as A) breakdown of macromolecules. B) control of enzyme activity. C) synthesis of macromolecules. D) A and B. E) A, B, and C. 2) Which term most precisely describes the general process of breaking down large molecules into smaller ones? A) anabolism B) catabolism C) catalysis D) dehydration E) metabolism 3) Which of the following is true regarding catabolic pathways? A) They do not depend on enzymes. B) They lead to the synthesis of catabolic compounds. C) They release energy as they degrade polymers to monomers. D) They consume energy to build up polymers from monomers. E) Both A and B are correct.