MCAT Question A Day - 7/14/14

As chyme is passed from the stomach. to the small intestine, the catalytic activity of pepsin:

A. increases because pepsin works synergistically with trypsin.

B. increases because pepsin is activated from its zymogen form.

C. decreases in response to the change in pH.

D. decreases because pepsin is digested by pancreatic amylase in the small intestine.

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