1.

Prosthetic groups differ from co-enzymes in that –(A) They can serve as co-factors in a number of enzyme – catalyzed reactions(B) They require metal ions for their activity(C) They (prosthetic groups) are tightly bound to apoenzymes(D) Their association with apoenzymes is transient

Answer»

(C) They (prosthetic groups) are tightly bound to apoenzymes

 Apoenzyme (protein part) and co-factor together form a complete catalytically active enzyme which is known as holoenzyme. The co-factors are of two types; metal ions and coenzymes. A coenzyme or metal ion that is very tightly or even covalently bound to the enzyme protein is known as a prosthetic group.



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