Enzymes and digestion

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  • Created by: Lucy1499
  • Created on: 02-04-16 09:11
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  • Enzymes and Digestion
    • Digestive enzymes pass out of cells in glandular tissue
      • They then go into the space inside the gut and become mixed up with the food
      • They cut large food molecules into smaller bits
      • There are three main groups of digestive enzymes
    • Three types of digestive enzymes
      • Amylase - starch (substrate), Sugars (product) and it is produced in the salivary glands in the mouth and pancreas
      • Protease - protein (substrate), amino acids (product) and it is produced in the pancreas, stomach and small intestine
        • Protease - protein - amino acids
      • Lipase - lipids (fats and oils) (substrate), fatty acids and glycerol (product) and it is produced in the pancreas and small intestine
        • Lipase - lipids (fats) - glycerol and fatty acids
    • Mechanical Digestion
      • Physical breakdown of large bits of food into smaller ones
      • E.g. Teeth
    • Chemical Digestion
      • The use of enzymes to break down large food molecules into smaller ones
      • Stomach acid kills bacteria
    • Carbohydrase - carbohydrate - glucose
    • Bile - made in the liver, works in the stomach and small intestine
    • Protein - biological catalyst that speed up chemical reactions like respiration etc.


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