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nmdcat.online July 11, 2026

An increase in temperature can initially increase an enzyme-catalyzed reaction rate. This effect is primarily due to

A. A decrease in the enzyme's affinity for its substrate
B. An increase in the kinetic energy and collision frequency between enzyme and substrate
✓
C. A shift in the equilibrium constant in favor of product formation
D. The denaturation of peptide bonds leading to a more flexible active site

📝 Explanation

Higher temperatures increase molecular kinetic energy, leading to more frequent and forceful collisions that increase the chance of overcoming the activation energy barrier.

📖 Additional Information

  • A decrease in the enzyme's affinity for its substrate
  • An increase in the kinetic energy and collision frequency between enzyme and substrate
  • A shift in the equilibrium constant in favor of product formation
  • The denaturation of peptide bonds leading to a more flexible active site

Higher temperatures increase molecular kinetic energy, leading to more frequent and forceful collisions that increase the chance of overcoming the activation energy barrier.

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