Biochemistry – MCQ 6 – Which of the following enzymes is stable at acidic pH

Which of the following enzymes is stable at acidic pH
A. Pepsin
B. Trypsin
C. Chymotrypsin
D. Carboxypeptidase

Correct answer : Pepsin

Pepsin is formed when pepsinogen is activated by hydrochloric acid in the stomach. The optimum pH for pepsin action is 1.6 to 3.2.

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