AIIMS 2018 Zoology Metal ions in biological systems Match the Following Question
Match the Column-I & Column-II:
| Column-I | Column-II |
|---|---|
| (i) | (A) Alcoholic dehydrogenase |
| (ii) | (B) Nitrogenase |
| (iii) | (C) Catalase |
| (iv) | (D) PEP carboxylase |
(i)⁻B, (ii)⁻D, (iii)⁻C, (iv)⁻A
(i)⁻B, (ii)⁻A, (iii)⁻D, (iv)⁻C
(i)⁻D, (ii)⁻B, (iii)⁻A, (iv)⁻C
(i)⁻B, (ii)⁻D, (iii)⁻A, (iv)⁻C
Correct Answer
Detailed Explanation
Option D is correct because it accurately matches the metal ions with their respective enzymes based on their biochemical roles. For instance, magnesium (Mg²⁺) is a cofactor for enzymes like ATPase, while zinc (Zn²⁺) is essential for enzymes such as carbonic anhydrase. Other options are incorrect as they misalign the metal ions with their corresponding enzymatic functions, failing to recognize the specific biochemical pathways each metal ion supports. Understanding the role of metal ions as cofactors is crucial in enzymatic reactions, influencing processes such as catalysis and substrate binding.
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