Protein Digestion

• Begins with acid in stomach


  protein Digestion
• Most enzymes are produced in


  an inactive state to prevent self - digestion
• Produced by stomach


  pepsin
• Pancreatic enzymes:


  trypsin, carboxypeptidase, chymotrypsin, and elastase
• Enzymes cannot easily


  access and break bonds of highly folded proteins
• HCl in gastric juice denatures proteins making peptide bonds accessible to


  enzymes
• Pepsin cuts proteins into shorter


  polypeptides
• Enzymes in small intestine break bonds to


  yield individual amino acids