Question

1. a certain enzyme will react with protein but not fats. which statement best explains this observation? a. proteins act as a coenzyme for reactions. b. fat molecules are too large to be reacted with. c. enzyme molecules are specific in their actions. d. fats are composed of lipids which cannot be reacted.

Explanation:

Enzymes are highly specific in the reactions they catalyze. They have an active - site that is complementary in shape and chemical properties to a particular substrate. In this case, the enzyme's active - site is complementary to protein but not to fats. Proteins do not act as coenzymes for reactions in general (A is wrong). Fat molecules are not too large to be reacted with by enzymes (B is wrong). Fats can be reacted with by certain enzymes (D is wrong).

Answer:

C. Enzyme molecules are specific in their actions.