Recall questions

• What is a hydrolysis reaction?

  Where water is added to break a covalent bond
• What is the product of complete hydrolysis of proteins?

  Amino acids
• What is the role of protease enzymes?

  To break down proteins in a series of hydrolysis reactions
• What is the role of endopeptidases?

  Hydrolyse peptide bonds within a large protein (polypeptide) to

  create smaller polypeptide chains
• Describe the action of exopeptidases

  Hydrolyse terminal peptide bonds (between amino acids on the

  ends of a polypeptide chain) to remove individual amino acids and

  create smaller polypeptide chains
• Where are dipeptidases found?

  On the membrane of epithelial cells lining the small intestine