25) Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxyp

Question

A) competitive inhibitor of the enzyme.

B) noncompetitive inhibitor of the enzyme.

C) allosteric activator of the enzyme.

D) cofactor necessary for enzyme activity.

E) coenzyme derived from a vitamin.

Answer 1

the answer is D a co-factor necessary for enzyme activity..many trace elements function as co-factors and as actual parts of the molecule ( such as Fe+2 in heme , copper in ceruloplasmin, cobalt in vitamin B12.

Answer 2

D) cofactor necessary for enzyme activity.