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प्रश्न
State whether the following statement is true or false:
Some organisms store wastes in body parts.
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
Explain the term haemodialysis.
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 a section of human kidney. Study the diagram carefully and answer the questions that follow :
(i) Label the parts numbered 1 to 4.
(ii) Why does part ‘2’ have a striped appearance?
(iii) What is the fluid that passes down part ‘4’? Name the main nitrogenous waste present in it.
(iv) Mention the structural and functional units of kidneys.
(v) Name the two major steps in the formation of the fluid mentioned in Q.5 (a) (iii).
Explain Selective reabsorption
Write the functions of Kidney
Why do some people need to use a dialysis machine? What does the machine do?
What is the function of excretory system in humans?
Differentiate between
excretion and transpiration
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Write two differences in composition of the blood flowing through the blood vessels, 'A' and 'B'.
Study the diagram given alongside and then answer the question that follow:
Name the parts labelled 1, 2, 3, and 4.
Study the diagram given alongside and then answer the question that follow:
Name the stages involved in the formation of urine.
Complete the following sentence with appropriate word:
______ supplies blood to kidney.
Write the functional activity of the following structure: Aldosterone
Choose the correct option.
In human beings, uric acid is formed due to metabolism of ______.
Choose the correct option.
Deproteinised plasma is not found in ______.
Choose the correct option.
Specific gravity of urine would _______ if level of ADH increases.
Choose the correct option.
The minor calyx _______.
Osmoregulation maintains the osmolarity of blood at about ______.
Among the following animals, the best conserver of water is ______.
Leaves of a healthy potted plant were coated with vaseline. Will this plant remain healthy for long? Give reasons for your answer.
