Which one of the following enzymes initiates protein digestion?
A
Aminopeptidase
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B
Carboxypeptidase
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C
Trypsin
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D
Pepsin
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Solution
The correct option is D Pepsin Protein digestion first begins in the stomach, where pepsinogen is converted to active form pepsin, by hydrochloric acid. Pepsin breaks proteins down into polypeptides.