Which of the following is not an enzyme?

AChemotrypsin

BSecretin

CPepsin

Dnone

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Correct Answer: B: Secretin

Explanation: The correct answer is B: Secretin. Secretin is not an enzyme — it is a hormone. Secretin is produced by the small intestine and stimulates the pancreas to release bicarbonate. Chymotrypsin and Pepsin are digestive enzymes.

Which of the following is not an enzyme?

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