Question

Non-protein part of holoenzyme is

• A. Zymogen
• B. Cofactor
• C. Fatty acid
• D. None of the above

Answer 1

Answer: (B)

Cofactor

Enzymes are proteins which help to catalyze the biochemical reaction. The enzyme has a protein part which is not active is known as apoenzyme. It gets activated by the addition of an organic or inorganic cofactor. The holoenzyme is defined as apoenzyme in combination with the cofactor. The 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 a coenzyme. The tightly bound coenzymes are the prosthetic group.

So, the correct answer is option B.