Pepsinogen is activated by ___________________ ?
Correct answer: C. Low pH
- A. Enterokinase
- B. Trypsin
- C. Low pH
- D. Chymotrypsin
Explanation
Pepsinogen is converted to active pepsin in the strongly acidic gastric lumen, with the low pH also allowing pepsin to activate more pepsinogen. Enterokinase activates trypsinogen in the intestine, not pepsinogen.
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