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Class 11 Biology: Excretory Products and Elimination
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MCQs on animals excretory system, human excretory system, urine formation, tubules function, filtrate concentration mechanism, excretory system regulation and disorders.

Class 11 Biology: Excretory Products and Elimination
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25 Questions

1. Which of the following is incorrectly marked in the given diagram?
Hepatic portal vein diagram
2. What is the osmolarity of the urine in the cortex?
3. Which of the following is not an adaptation of kangaroo rat?
4. Which of the following is the most toxic form of nitrogenous waste?
5. What happens when the filtrate passes through the ascending loop of Henle?
6. What is ADH?
7. Juxta-medullary nephrons constitute what percentage of the total nephrons?
8. Which of the following does not show maximum osmolarity?
9. Which of the following runs parallel to the Henle's loop?
10. What is the significance of the tubular secretion?
11. Juxtaglomerular cells are the modifications of which of the following?
12. Hyposecretion of ADH causes which of the following diseases?
13. What is the myogenic mechanism of the kidney?
14. In approximately how many minutes, the whole blood of the body is filtered through the kidneys?
15. Which of the following substances are not secreted by the tubular cells?
16. What is the starting point of the ornithine cycle?
17. How does the ascending loop of Henle allow the movement of electrolytes?
18. PCT is lined by which of the following cells?
19. The outer layer of Bowman's capsule is made up of which of the following epithelium?
20. Which of the following is the first step towards urine formation?
21. Which of the following organs does not help in the elimination of excretory wastes?
22. Which of the following is not accumulated by the body of living organisms?
23. The peritubular capillaries emerge from which of the following?
24. Which of the following type of nephrons are prominently present in the desert mammals?
25. What happens due to the increase of sodium ions in the blood?

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