Question

Match List I with List II and choose the correct answer.

• A. A-I, B-II, C-III, D-IV
• B. A-II, B-I, C-IV, D-III
• C. A-III, B-IV, C-I, D-II
• D. A-IV, B-III, C-II, D-I

Hint:

• CoA → B$_5$ (Pantothenic acid)
• FAD → B$_2$ (Riboflavin)
• TPP → B$_1$ (Thiamine)
• NAD$^+$ → B$_3$ (Niacin)

Answer 1

The Correct Option is B

Concept: Many coenzymes are derived from vitamins:
• Coenzyme A → Pantothenic acid (Vitamin B$_5$)
• FAD → Riboflavin (Vitamin B$_2$)
• Thiamine pyrophosphate → Vitamin B$_1$ (Thiamine)
• NAD$^+$ → Niacin (Vitamin B$_3$)

Step 1: Matching each compound.

• Coenzyme A → Pantothenic acid → II
• FAD → Riboflavin → I
• Thiamine pyrophosphate → Vitamin B$_1$ → IV
• NAD$^+$ → Niacin → III

Step 2: Writing the correct combination.
\[ A \rightarrow II,\quad B \rightarrow I,\quad C \rightarrow IV,\quad D \rightarrow III \] Thus, the correct option is (B).