Biochemical Tests

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  • Biochemical Tests
    • Proteins
      • Add Biurets reagent
        • A positive test is purple
    • Lipids
      • Crush the substance that is being tested
        • Add ethanol
          • Add the same amount of water
            • A positive test is a cloudy white precipitate
    • Carbohydrates
      • Reducing Sugars
        • Add Benedicts solution
          • A positive test is brick red
      • Non-Reducing Sugars
        • Add Hydrochloric acid
          • Add the same amount of sodium hydroxide to neutralise
            • Add Benedicts solution
              • A positive test is brick red
      • Starch
        • Add iodine
          • A positive test is blue-black

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