Class 6 Biology Component of Food Carbohydrates


  • Carbohydrate is the main component of food. It provides us energy in the form of glucose.
  • Carbohydrates found in starch and sugar containing food items. For example: potato, rice, bread, sugary drinks like fruit juices, wheat etc.
  • Test of starch: To test the carbohydrate in food we need the diluted iodine solution.
  • Take raw peeled potato slice and add 2-3 drops of dilute iodine solution.
  • You will find the color changes from orange to blue-black this shows the presence of starch.

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