Which Statement About Protein Digestion in the Stomach and Intestines

question 15

Multiple Choice

Which statement about protein digestion in the stomach and intestines is FALSE?

• A) Trypsin can activate all zymogens of pancreatic proteases.
• B) pepsin is irreversibly inactivated when the pH is above 5.
• C) Chymotrypsin and trypsin show similar specificity in catalyzing the hydrolysis of peptide bonds.
• D) The action of pepsin in the stomach produces primarily peptide fragments of proteins.
• E) Intestinal peptidases are required to digest di- and tri-peptides.

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