Question 1

Why do organisms need to take food?


The organisms take food to build their bodies, to grow, to repair damaged parts of their bodies and provide the energy to carry out life process like respiration, reproduction, digestion, nutrition, transportation, excretion and circulation of blood etc. To perform all these life process the organisms requires energy and mineral nutrients.


  • The energy that is taken by the organisms is supplied through food.
  • The intake of food helps to perform all the activities and also develops the immunity by making antibodies to fight against infectious diseases.
  • The vital nutrients absorbed by blood from food also plays important role in healing the wound and curing the diseases or the attack of the pathogens on the organism.
  • Food is a basic vital or essential ingredient which plays a superior role in maintaining, functioning and developing of the organisms. Thus, organisms needs to consume food.

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