Question

A metal ion required for normal functioning of an enzyme is

• A. Holoenzyme
• B. Coenzyme
• C. Cofactor
• D. Prosthetic group

Answer 1

The correct option is C Cofactor

The holoenzyme is defined as apoenzyme in combination with the cofactor.

A cofactor is a non-protein part of the enzyme. It can be metal ions or the organic chemical. The cofactors which are organic chemicals are known as the coenzyme. These are loosely attached to the apoenzyme. The tightly bound coenzymes are the prosthetic group.

So, the correct answer is option C.