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प्रश्न
Define the following term:
Osmoregulation
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उत्तर
The kidney while removing wastes like urea from the blood also regulates its composition, i.e., the percentage of water and salts. This function is called osmoregulation.
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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 |
The diagram given below shows the male urinogenital system of a human being. Study the diagram and answer the questions that follow:
(i) Label the parts numbered 1 to 8.
(ii) Name the corresponding structure of part (4) in female reproductive system.
(iii) What is the role of part 7?
The diagram given alongside is that of a structure present in a human kidney:
Study the same and answer the questions that follow:
- Name the structure represented in the diagram.
- What is the liquid entering part ‘1’ called?
Name two substances present in this liquid that are reabsorbed in the tubule - What is the fluid that comes to part ‘2’ called? Name the main nitrogenous waste in it.
- Mention the three main steps involved in the formation of the fluid mentioned in (c) above.
- Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus
The excretory unit in the human excretory system is called ______.
Why is excretion necessary in living beings?
Explain in your own words with suitable examples.
How does excretion occur in human beings?
Choose the correct answer:
The smallest functional unit of the kidney is ____________
Write the functional activity of the following structure: Vasopressin
Give two examples of the following:
Nitrogenous waste
