Question

When coenzyme is combined with apoenzyme, it is called [AIIMS 1990; CMC Vellore 1994]
A) Cofactor
B) Holoenzyme
C) Substrate enzyme complex
D) Vitamin A

Answer 1

the answer to your question is A

Answer 2

Answer:

When coenzyme is combined with apoenzyme, it is called B) Holoenzyme.

Explanation:

Many enzymes require an additional small molecule cofactor to aid with catalytic activity. Cofactor molecules can be either inorganic (metal) or small organic molecules (coenzymes). Coenzymes help in the function of enzymes. Coenzymes bind apoenzymes protein molecule to produce complete catalytically active holoenzyme. Most of the cofactors are covalently bound instead of tightly bound. Holoenzymes can include DNA polymerase and RNA polymerase which contain multiple protein subunits.