Based on this information, which of the following is correct? ____ 41. a. Succinate dehydrogenase is the enzyme, and fumarate is the substrate. Succinate dehydrogenase is the enzyme, and malonic acid is the substrate. b. c. Succinate is the substrate, and fumarate is the product. d. Fumarate is the product, and malonic acid is a noncompetitive inhibitor. e. Malonic acid is the product, and fumarate is a competitive inhibitor. What is the purpose of using malonic acid in this experiment? ____ 42. a. It is a competitive inhibitor. b. It blocks the binding of fumarate. c. It is a noncompetitive inhibitor. It is able to bind to succinate. d. e. It replaces the usual enzyme. The following questions are based on the reaction A + B  C + D shown in Figure 8.2. Figure 8.2 Which of the following terms best describes the reaction? ____ 43. endergonic a. b. exergonic c. anabolic d. allosteric e. nonspontaneous of the following represents the of the reaction? ____ 44. a. a b. b c c. d. d e. e Which of the following would be the same in an enzyme-catalyzed or noncatalyzed reaction? ____ 45. a. a b. b c. c d. d e e. of the following represents the difference between the free-energy content of the reaction and ____ 46. the free-energy content of the products? a. a b. b c. c d. d e. e
____ 41. Based on this information, which of the following is correct? a. Succinate dehydrogenase is the enzyme, and fumarate is the substrate. b. Succinate dehydrogenase is the enzyme, and malonic acid is the substrate. c. Succinate is the substrate, and fumarate is the product. d. Fumarate is the product, and malonic acid is a noncompetitive inhibitor. e. Malonic acid is the product, and fumarate is a competitive inhibitor. ____ 42. What is the purpose of using malonic acid in this experiment? a. It is a competitive inhibitor. b. It blocks the binding of fumarate. c. It is a noncompetitive inhibitor. d. It is able to bind to succinate. e. It replaces the usual enzyme. The following questions are based on the reaction A + B  C + D shown in Figure 8.2. Figure 8.2 ____ 43. Which of the following terms best describes the reaction? a. endergonic b. exergonic c. anabolic d. allosteric e. nonspontaneous ____ 44. of the following represents the of the reaction? a. a b. b c. c d. d e. e ____ 45. Which of the following would be the same in an enzyme-catalyzed or noncatalyzed reaction? a. a b. b c. c d. d e. e ____ 46. of the following represents the difference between the free-energy content of the reaction and the free-energy content of the products? a. a b. b c. c d. d e. e
AP-Energetics-Practice-Test.docx