Question

When an apoenzyme is separated from its metal component, its activity is

• A. Decreased
• B. Increased
• C. Lost
• D. Not affected

Answer 1

The correct option is A Decreased

Enzymes are high molecular protein molecules, conjugated with non-protein cofactors i.e apoenzyme which is composed of amino acids only and a prosthetic group consist of a non- protein groups. Cofactors are mostly metal ions or coenzymes, the binding of the enzyme to a coenzyme forms a holoenzyme which has the necessary components for the proper functioning of an active enzyme, separation causes decreased in catalytic activity.

So, the correct answer is 'decreased'.