Moderate
Digestion of proteins is initiated by________________?
Correct answer: D. Pepsin
- A. Amylase
- B. Sucrase
- C. Chymotrypsin
- D. Pepsin
Explanation
Pepsin begins protein digestion in the acidic stomach after activation from pepsinogen. Amylase digests starch, while sucrase digests sucrose and chymotrypsin acts later in the small intestine.
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