Question

The fastest acting enzyme in the biological kingdom is

• A. Lipase
• B. Amylase
• C. Carboxypeptidase
• D. Carbonic anhydrase

Answer 1

The correct option is D Carbonic anhydrase

In enzymology, the turnover number is the number of substrate molecules converted to products in a given unit of time on a single enzyme molecule when the enzyme is saturated with substrate. The enzyme catalase has the highest turnover number value of 40,000,000 (per second per molecule of enzyme), followed by Carbonic anhydrase 400,000 (per second per molecule of enzyme), followed by acetylcholinesterase 140,000 (per second per molecule of enzyme), followed by $\beta$-lactamase 2000 (per second per molecule of enzyme).