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प्रश्न
Why do organisms need to take food?
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उत्तर
Food is needed by all organisms for many purposes:
- The main function of food is to help in growth.
- Food provides energy for movements such as running, walking or raising our arms.
- Food is also needed for replacement and repairing damaged parts of the body.
- Food gives us resistance to fight against diseases and protects us from infections.
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संबंधित प्रश्न
Define saprophyte.
Name the mode of nutrition in Plasmodium.
What is the mode of nutrition in Amoeba known as?
What is the process of obtaining food by Amoeba called? What does it mean?
The process of obtaining food by Amoeba is known as ______.
The organism having parasitic mode of nutrition is ______.
One of the following organisms has a saprophytic mode of nutrition. This organism is ______.
In which of the following groups of organisms the food material is broken down outside the body and then absorbed?
| The organisms A, B and C can obtain their food in three different ways. Organism A derives its food from the body of another living organism which is called its D, without killing it. The organism B takes in the solid food by the process of ingestion, digests a part of this food and throws out undigested food in the process called E. The organism C obtains its food from dead and decaying plants. |
- What is the mode of nutrition of (i) organism A (ii) organism B, and (iii) organism C?
- What is the organism like D called?
- Name the process E.
- Give one example each of organisms like (i) A (ii) B, and (iii) C.
- What is the general name of three modes of nutrition exhibited by organisms A, B and C?
Visit a green house if there is one near your place. Observe how they grow plants. Find out how they regulate the amount of light, water and carbon dioxide to grow the plants.
