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Laboratory work №3: Study of the presence of proteins, fats, carbohydrates in food

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In this work, students will learn to determine the presence of carbs,fats and proteins in the composition of food.

Lesson 1:

  • bread and potato slices
  • starch
  • iodine solution
  • water
  • beaker
  • pipette
  • spoon
  • Petri dishes -2 pcs

Lesson 2:

  • Water
  • Food (slice of bread, nuts, vegetable oil)
  • Mortar and pestle - 2 pcs
  • Filter paper
  • Cotton buds

Lesson 3:

  • Egg white
  • Milk
  • Test tube - 2 pcs
  • test tube rack
  • beaker - 4 pcs
  • pipette or syringe - 4 pcs
  • rubber gloves
  • Chemical agents:
  • Copper sulfate (CuSO4)
  • Caustic soda (NaOH)