Question

multiple - choice question
which of the following is a primary function of the active site of an enzyme?
it binds allosteric regulators of the enzyme.
it binds noncompetitive inhibitors of the enzyme.
it is activated by the presence of the end product of the metabolic pathway in which the enzyme is involved.
it catalyzes the reaction associated with the enzyme.

Explanation:

The active - site of an enzyme is the region where the substrate binds and the chemical reaction occurs. Allosteric regulators bind to allosteric sites, not the active - site. Non - competitive inhibitors bind to a site other than the active - site. Feedback inhibition by the end - product usually acts on allosteric sites. The primary function of the active - site is to catalyze the reaction.

Answer:

It catalyzes the reaction associated with the enzyme.