The true statement(s) regarding the carbonic anhydrase enzyme is/are
(a)It is involved in peptide bond cleavage.
(b)Redox inactive $\mathrm{Zn}^{2+}$ ion is involved in the catalytic activity of this enzyme.
(c)Activated $\mathrm{M}-\mathrm{OH}_{2}(\mathrm{M}=$ metal ion) acts as the nucleophile in the enzyme.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
Answer: (b) and (c) true; (a) false — Carbonic anhydrase hydrates CO₂ and does not cleave peptides. Its redox-inactive Zn²⁺ activates bound water to Zn–OH⁻, which attacks CO₂. The chapter key lists (b, c, d); option (d) is not visible in the source page.