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Digestive enzymes - Coggle Diagram
Digestive enzymes
Amylase
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To test for sugars, add Benedict's reagent and heat for about 2mins it will turn green, yellow or red depending on concentration.
To test for Starch add iodine solution, it will turn blue/ black if starch is present.
Proteases
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To test for proteins add Biuret solution, it will turn mauve or purple if proteins are present.
Bile
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It also neutralises the acid in the stomach as enzymes work better in alkaline conditions and so prevents them from denaturing.
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Lipase
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To test for add Sudan III and if lipids are present a red stained oil layer will float on the surface.
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