Match the cofactors with their correct descriptions or examples.

List – I List – II
A. Prosthetic groups I. Organic compounds tightly bound to the apoenzyme; haem in peroxidase and catalase
B. Co-enzymes II. Organic compounds with transient association during catalysis; NAD and NADP containing niacin
C. Metal ions III. Required for enzyme activity, forming bonds with active site and substrate; zinc in carboxypeptidase
(A) (B) (C)
1. II I III
2. I II III
3. III I II
4. I III II

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answer is B.

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Detailed Solution

Prosthetic Groups	Organic compounds tightly bound to the apoenzyme; haem in peroxidase and catalase
Co-enzymes	Organic compounds with transient association during catalysis; NAD and NADP containing niacin
Metal ions	Required for enzyme activity, forming bonds with active site and substrate; zinc in carboxypeptidase

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	List – I		List – II
A.	Prosthetic groups	I.	Organic compounds tightly bound to the apoenzyme; haem in peroxidase and catalase
B.	Co-enzymes	II.	Organic compounds with transient association during catalysis; NAD and NADP containing niacin
C.	Metal ions	III.	Required for enzyme activity, forming bonds with active site and substrate; zinc in carboxypeptidase