An Enzyme..     A. Becomes part of the final products B. Is consumed by the reaction C. Is nonspecfic for substrate D. is heat & pH sensitive

Indicate whether each of the following statements about an enzyme active site is true or false. a. It is the location where substrate molecules are produced. b. It always has a fixed, rigid geometry. c. It always has a geometrical shape exactly complementary to that of substrate. d. It always accomodates several structurally related substrates. e. It is the location where substrate molecules are converted to product molecules. f. It always has a shape that has a degree of flexibility to it. g. it always accomodates only one specific substrate.

In order for ATP to effectively deliver energy to an enzyme, the following needs to be the case: a. a. ATP hydrolysis is spatially close to the enzyme’s active site   b. There must be a separate protein present whose task is ATP hydrolysis     c. There must be a phosphate acceptor present   d. ATP must be formed during the reaction

41) Use the following information to answer the 2 questions below. C. b. A+B a. d. ,C+D Progress of the Reaction The figure illustrates the energy states associated with the reaction A +B -C+ D. Which of the following represents the activation energy required for the enzyme-catalyzed reaction in the figure? A) a B) b C) c D) d Free Energy