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BIO NMDCAT Mode of Enzyme Action
nmdcat.online July 11, 2026

The lock and key model, proposed by Emil Fischer, describes enzyme substrate interaction as

A. A flexible active site
✓
B. A rigid, pre shaped active site complementary to the substrate
C. Random collision followed by substrate change
D. Substrate changes enzyme primary structure

📖 Additional Information

  • A flexible active site
  • A rigid, pre shaped active site complementary to the substrate
  • Random collision followed by substrate change
  • Substrate changes enzyme primary structure

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