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salts and excess water form a yellowish liquid ‘U’ which goes from organ ‘P’ into a bag like |
structure ‘V’ through two tubes ‘W’. This liquid is then thrown out of the body through a tube |
‘X’.(AS1) |
(a) What is (i) organ P and (ii) waste substance Q. |
(b) Name (i) artery R and (ii) vein T |
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90 X Class Excretion The wastage disposing system |
(c) What are tiny filters S known as? |
(d) Name (i) liquid U (ii) structure V (iii) tubes W (iv) tube X. |
12. The organ ‘A’ of a person has been damaged completely due to a poisonous waste material ‘B’ |
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null |
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A |
has started accumulation in his blood, making it dirty. In order to save this person’s life, the blood |
from an artery in the person’s arm is made to flow into long tubes made of substance ‘E’ which are |
kept in coiled form in a tank containing solution ‘F’. This solution contains three materials ‘G’, ‘H’ |
null |
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null |
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AN |
and ‘I’ similar proportions to those in normal blood. As the person’s blood passes through long |
tubes of substance ‘E’, most if the wastes present in it go into solution ‘F’. The clean blood is then |
put back into a vein in the person for circulation. (AS1) |
(a) What is organ A? |
(b) Name the wastes substance B. |
null |
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null |
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NG |
(c) What are (i) E, and (ii) F? |
(d) What are G, H and I? |
(e) What is the process described above known as? |
13. Imagine what happens if waste materials are not sent out of the body from time to time?(AS2) |
14. To keep your kidneys healthy for long period what questions will you ask a nephrologist/ |
urologist?(AS2) |
15 |
LA |
What are the gum yielding trees in your surroundings? What procedure you should follow to |
collect gum from trees?(AS3) |
16. Collect the information about uses of different kinds alkaloids, take help of Library or internet?(AS4) |
17. Draw a neat labeled diagram of L.S of kidney?(AS5) |
18. Describe the structure of nephron with the help of a daigram. (AS5) |
TE |
null |
19. Draw a block daigram showing the path way of excretory system in human beings. (AS5) |
20. If you want to explain the process of filtration in kidney what diagram you need to draw.(AS5) |
21. List out the things that makes you amazing in excretory system of human being.(AS6) |
22. You read about ‘Brain dead’ in this chapter. What discussions would you like to have why you |
think so?(AS6) |
T |
null |
null |
23. We people have very less awareness about organ donation, to motivate people write slogans |
about organ donation?(AS7) |
24. After learning this chapter what habits you would like to change or follow for proper functioning of |
ER |
null |
null |
null |
null |
kidneys?(AS7) |
null |
Fill in the blanks |
null |
1. Earthworm excretes it’s waste material through ______________. |
SC |
null |
null |
null |
null |
2. The dark coloured outer zone of kidney is called _____________. |
3. The process of control of water balance and ion concentration with in organism is called________. |
4. Reabsorption of useful product takes place in ____________ part of nephron. |
5. Gums and resins are the __________ products of the plants. |
6. Bowman’s capsule and tubule taken together make a ___________. |
7. The alkaloid used for malaria treatment is ________________. |
null |
Free distribution by T.S. Government 2019-20 91 |
8. The principle involved in dialysis is __________________. |
9. Rubber is produced from ______________ of Heavea braziliensis. |
10. ________________ performed first Kidney Transplantation. |
null |
null |
null |
null |
A |
Choose the correct answer |
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null |
null |
null |
AN |
11. The structural and functional unit of human kidney is called ( ) |
(A) Neuron (B)nephron |
)nephron (C)nephridia (D)flame cell |
(D)flame |
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