Question

Match List-I with List-II. List-I: A. Coenzyme Q, B. Biocytin, C. Pyridoxal Phosphate, D. Thiamin Pyrophosphate. List-II: I. Amino groups, II. Aldehyde, III. Carbon Dioxide, IV. Hydrogen atoms.

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

Hint:

Remember: Coenzyme Q carries hydrogen atoms, biocytin carries carbon dioxide, pyridoxal phosphate carries amino groups, and thiamin pyrophosphate carries aldehyde groups.

Answer 1

The Correct Option is A

Concept:
Coenzymes are organic helper molecules that assist enzymes during biochemical reactions. Different coenzymes carry different chemical groups or atoms.

Step 1: Match Coenzyme Q.
Coenzyme Q is also called ubiquinone. It participates in oxidation-reduction reactions in the electron transport chain. It mainly carries hydrogen atoms or electrons. \[ A \rightarrow IV \]

Step 2: Match Biocytin.
Biocytin is a coenzyme form associated with biotin. Biotin-containing enzymes are involved in carboxylation reactions and help in carrying carbon dioxide. \[ B \rightarrow III \]

Step 3: Match Pyridoxal Phosphate.
Pyridoxal phosphate is the active form of vitamin \(B_6\). It is involved in amino acid metabolism and transfers amino groups. \[ C \rightarrow I \]

Step 4: Match Thiamin Pyrophosphate.
Thiamin pyrophosphate is the active form of vitamin \(B_1\). It is involved in decarboxylation reactions and transfers aldehyde groups. \[ D \rightarrow II \] Thus, the correct matching is: \[ A-IV,\ B-III,\ C-I,\ D-II \] \[ \therefore \text{Correct Answer is (A)} \]