Q.

If the stomach did not produce any hydrochloric acid, which enzyme will not function?

A. Ptyalin
B. Rennin
C. Pepsin
D. Lipase
Answer» C. Pepsin
Explanation: Hydrochloric acid converts pepsinogen into an enzyme called pepsin. When food enters the stomach, hydrochloric acid production increases and the pH may fall to as low as 1 or 2, a very acidic condition.
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