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BIO NMDCAT Inhibitors
nmdcat.online July 13, 2026

The experimental observation indicates that both low and high substrate concentrations produce nearly the same reduced maximum reaction rate. The most appropriate interpretation is

A. Presence of a non-competitive inhibitor
✓
B. Presence of a competitive inhibitor
C. Presence of excess coenzyme
D. Absence of enzyme molecules

📝 Explanation

A non-competitive inhibitor lowers the maximum reaction rate regardless of substrate concentration because it alters enzyme structure. Competitive inhibition can be overcome by excess substrate. Concept tested: Interpretation of enzyme kinetics.

📖 Additional Information

  • Presence of a non-competitive inhibitor
  • Presence of a competitive inhibitor
  • Presence of excess coenzyme
  • Absence of enzyme molecules

A non-competitive inhibitor lowers the maximum reaction rate regardless of substrate concentration because it alters enzyme structure. Competitive inhibition can be overcome by excess substrate. Concept tested: Interpretation of enzyme kinetics.

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