When a coenzyme is combined with an apoenzyme | vedclass

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Question

(B) Enzymes are composed of one or several polypeptide chains. However,there are a number of cases in which non-protein constituents called cofactors

Vedclass · Accepted Answer

Holoenzyme

Vedclass · Answer

(B) Enzymes are composed of one or several polypeptide chains. However,there are a number of cases in which non-protein constituents called cofactors are bound to the enzyme to make the enzyme catalytically active.In these instances,the protein portion of the enzyme is called the apoenzyme.When the non-protein part (cofactor) is bound to the apoenzyme,the complete,catalytically active enzyme is called the holoenzyme.Coenzymes are a specific type of cofactor that are organic compounds,often derived from vitamins.

When a coenzyme is combined with an apoenzyme,it is called:

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Assertion : $A$ co-enzyme or metal ion that is very tightly bound to enzyme protein is called a prosthetic group.
Reason : $A$ complete,catalytically active enzyme together with its bound prosthetic group is called an apoenzyme.

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