Which of the following statements regarding protein digestion and absorption is TRUE?

Question

Quizplus · Accepted Answer

The digestion of protein requires the secretion of hydrochloric acid into the stomach to denature the protein and activate pepsin. High-protein meals require more acid secretion than meals containing little protein. The cells in the small intestine secrete enterokinase, which activates trypsinogen to trypsin, which breaks down proteins into smaller peptides. Pepsin is most active in an acidic pH, but trypsin is most active in an alkaline pH. The presence of peptides in the stomach stimulates the secretion of gastrin, not inhibits it. Proteins are broken down into peptides and amino acids before absorption and can pass through the pyloric sphincter into the small intestine.

Which of the Following Statements Regarding Protein Digestion and Absorption