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प्रश्न
Why is it necessary to excrete waste products?
संक्षेप में उत्तर
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उत्तर
- Certain waste and toxic products are formed during the functioning of body cells. Waste products like urea are toxic.
- When these toxic materials are not removed from the body, they get mixed with blood and can damage the cells of the body.
- It is necessary to remove such poisonous waste materials from our bodies.
- Some harmful substances are produced in the body as part of biological processes. It is very important to remove them from the body, otherwise poison will be produced in the body which can lead to death.
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संबंधित प्रश्न
Match structures given in Column I with functions given in Column II.
| Column I | Column II | ||
| (i) | Stomata | (a) | Absorption of water |
| (ii) | Xylem | (b) | Transpiration |
| (iii) | Root hairs | (c) | Transport of food |
| (iv) | Phloem | (d) | Transport of water |
| (e) | Synthesis of carbohydrates |
Name the Following
The organ which produces urea.
State the exact location of the Loop of Henle.
Define excretion.
What is the role of glomerulus in the kidney?
Draw a neat labelled diagram of the human excretory system.
In summer the urine is slightly thicker than in winter explain the reason.
What is dialysis? Under what condition is it carried out?
Choose the correct option.
In human beings, uric acid is formed due to metabolism of ______.
Answer the following question.
Name any one guanotelic organism.
