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BIO NMDCAT Factors that Affect the Rate of Enzyme Reactions
nmdcat.online July 11, 2026

The reaction rate remains nearly constant despite further addition of substrate because

A. Active sites are already fully occupied
✓
B. Enzyme molecules become inactive
C. Product molecules activate enzymes
D. Temperature decreases automatically

📝 Explanation

At Vmax, enzyme saturation has occurred. Additional substrate cannot increase the reaction rate.

📖 Additional Information

  • Active sites are already fully occupied
  • Enzyme molecules become inactive
  • Product molecules activate enzymes
  • Temperature decreases automatically

At Vmax, enzyme saturation has occurred. Additional substrate cannot increase the reaction rate.

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