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

Pepsin has an optimum pH of about 2 because

A. Its coenzyme works only at low pH
B. Catalytic residues require a specific protonation state
C. The substrate is active only at pH 2
✓
D. Product inhibition occurs at higher pH

📖 Additional Information

  • Its coenzyme works only at low pH
  • Catalytic residues require a specific protonation state
  • The substrate is active only at pH 2
  • Product inhibition occurs at higher pH

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