List-I | List-II |
---|---|
(A) Thiamine (B1) | (i) Riboflavin adenine nucleotide |
(B) Riboflavin (B2) | (ii) Tetrahydrofolic acid |
(C) Niacin | (iii) Nicotinamide adenine dinucleotide |
(D) Folic acid | (iv) Co-carboxylase |
Vitamins and their metabolic coenzyme roles:
• Thiamine (Vitamin B1) is essential for carbohydrate metabolism, as it’s a precursor for co-carboxylase.
• Riboflavin forms important coenzymes, like flavin adenine dinucleotide (FAD) and riboflavin adenine nucleotide, which are vital for redox reactions.
• Niacin is converted into nicotinamide adenine dinucleotide (NAD) and NADP, both crucial for many metabolic processes, especially in redox reactions.
• Folic acid plays a role in nucleotide synthesis, and it is metabolized to tetrahydrofolic acid.
The correct matching is: (A) - (iv), (B) - (i), (C) - (iii), (D) - (ii).