GCSE Biology (AQA)

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Proteins & Proteases

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Organisation Animal Tissues, Organs and Organ Systems

Proteins & Proteases

1:41 Digestive Enzymes in Detail
Spec 4.2.2.1
Previous Carbohydrates & Carbohydrases Next Lipids & Lipases
  • Proteins are large molecules composed of amino acids.
  • High-protein foods include meat, fish, and eggs.
  • Proteins are digested by proteases, which are digestive enzymes that break proteins into amino acids.
  • The digestion process can be represented by a simple word equation: Protein + Protease = Amino Acids.
  • Proteases are produced in the stomach, pancreas, and small intestine.
  • The pancreas also produces other digestive enzymes, which are passed into the small intestine.
  • Amino acids produced from protein digestion are used to build new proteins, enzymes, and muscle in the body.

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