NEETBotanyBiomolecules (B)
Match List-I with List-II. List-I List-II (A) Haem in catalase (I) Coenzyme (B) Zinc in carboxypeptidase (II) Apoenzyme (C) NAD (III) Prosthetic group (D) Protein portion of enzyme (IV) Metal ion Choose the correct answer from the options given below:
Options
- A(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
- B(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
- C(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
- D(A)-(I), (B)-(IV), (C)-(III), (D)-(II)
Correct answer
A. (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
Step-by-step solution
According to NCERT, Haem is the prosthetic group in the enzymes catalase and peroxidase, meaning it is an organic compound tightly bound to the apoenzyme. Zinc is a metal ion cofactor for the proteolytic enzyme carboxypeptidase, forming coordination bonds at the active site. NAD (nicotinamide adenine dinucleotide) is a coenzyme that contains the vitamin niacin and binds transiently during catalysis. The protein portion of an enzyme, devoid of its cofactor, is called the apoenzyme. Therefore, the correct match is (A