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

During an experiment, an enzyme exposed to pH 12 loses activity even after returning to neutral pH. This observation indicates

A. Competitive inhibition
B. Irreversible denaturation caused by extreme pH
✓
C. Temporary substrate deficiency
D. Increased catalytic efficiency

📝 Explanation

Extremely alkaline conditions may permanently disrupt the enzyme's tertiary structure, preventing recovery of activity.

📖 Additional Information

  • Competitive inhibition
  • Irreversible denaturation caused by extreme pH
  • Temporary substrate deficiency
  • Increased catalytic efficiency

Extremely alkaline conditions may permanently disrupt the enzyme's tertiary structure, preventing recovery of activity.

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