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  • Enzymes
    • Enzymes are biological catalysts
      • Catalysts increase the rate of a chemical reaction
    • The shape o f an enzyme it vital for the enzymes function
      • High temps change the shape
    • Different enzymes work best at different pH
    • Some enzymes work outside body cells
      • digestive enzymes are produced by specialised cells in glands and in the lining of the gut
        • Enzymes then pass out of the cells into the gut, where they can come in contact with food molecules
          • the catalyse the breakdown of large molecules into smaller molecules
    • Some microorganisms produce enzymes that pass out of the cells
      • these enzymes have many uses in homes and indsutry
    • Enzymes in the home
      • biological detergents may contain protein-digesting and fat-digesting enzymes (protease and lipase)
      • biological detergents are more effective at low  temps than other types of detergents
    • Enzymes in industry
      • protease are used to 'pre-digest' the protein in some bay foods
      • Carbohydrase are used to convert starch into sugar syrup
      • Isomerase is used to convert glucose syrup into fructose syrup
        • Much sweeter, and therefore used in smaller quantities in slimming foods


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