Question

how many types of biological/chemical reactions can each enzyme catalyze? a.) a few b.) one c.) many d.) all

Explanation:

Enzymes are highly specific in their action. This specificity is due to their unique three - dimensional structure. The active site of an enzyme is complementary to a particular substrate. Just as a key fits only one lock, an enzyme's active site binds to only one specific substrate (or a very closely related set of substrates in some cases, but the reaction type is still highly specific). This means that each enzyme can catalyze only one type of biological/chemical reaction.

Answer:

b. One