BIO NMDCAT Inhibitors

nmdcat.online July 13, 2026

9. Concerning enzyme inhibition, the characteristic feature of non-competitive inhibitors is

A. Reduction in maximum enzyme activity

✓

B. Complete prevention of substrate binding

C. Conversion of substrate into inhibitor

D. Increase in enzyme concentration

📝 Explanation

Non-competitive inhibitors decrease the maximum reaction rate because some enzyme molecules become inactive regardless of substrate concentration. The other statements are incorrect. Concept tested: Effect on enzyme kinetics.

📖 Additional Information

Reduction in maximum enzyme activity
Complete prevention of substrate binding
Conversion of substrate into inhibitor
Increase in enzyme concentration

Non-competitive inhibitors decrease the maximum reaction rate because some enzyme molecules become inactive regardless of substrate concentration. The other statements are incorrect. Concept tested: Effect on enzyme kinetics.

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