Protein digestion begins in the stomach but is completed in the small intestine.

Question

Quizplus · Accepted Answer

Protein digestion starts in the stomach where the enzyme pepsin breaks down the protein into smaller fragments called peptides. However, it is completed in the small intestine with the help of pancreatic enzymes, including trypsin, chymotrypsin, and carboxypeptidase. These enzymes break down the peptides into individual amino acids that can be absorbed into the bloodstream.

Protein Digestion Begins in the Stomach but Is Completed in the Small