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The correct match between Item I and Item II is : Item I Item II (A) Allosteric effect (P) Molecule binding to the active site of enzyme (B) Competitive inhibitor (Q) Molecule crucial for communication in the body (C) Receptor (R) Molecule binding to a site other than the active site of enzyme (D) Poison (S) Molecule binding to the enzyme covalently

1. (A) → (P); (B) → (R); (C) → (Q); (D) → (S)
2. (A) → (P); (B) → (R); (C) → (S); (D) → (Q)
3. (A) → (R); (B) → (P); (C) → (S); (D) → (Q)
4. (A) → (R); (B) → (P); (C) → (Q); (D) → (S)

Correct answer: (A) → (R); (B) → (P); (C) → (Q); (D) → (S)

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