core practical testing for biological molecules

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Created by
Olivia

Cards (1)

  • Investigating the use of chemical reagents in identifying starch, reducing sugars, proteins and lipids

    1. Gather equipment
    2. Place powdered food sample on spotting tile
    3. Add iodine solution to test for starch
    4. Record results
    5. Place powdered food in test tube with water and Biuret solution to test for proteins
    6. Record results
    7. Place powdered food in test tube with ethanol, shake, and pour liquid into boiling tube with water to test for lipids
    8. Record results
    9. Place powdered food in boiling tube with water and Benedict's solution, heat in water bath to test for reducing sugars
    10. Record results