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Class 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 4 (25 MCQs)

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1. The normal value of GFR is approximately (
2. Vertebrates have complex tubular organs for excretion of waste products like
3. The concentration gradient in the medullary interstitium is mainly caused by
4. JGA is a special sensitive region formed by cellular modifications in the ..... and the ..... at the location of their contact.
5. In which part of the Nephron 70-80 % of Electrolytes and water reabsorption take place?
6. In which of the following locations is filtrate osmolarity highest?
7. Dialysis fluid contain all the constituents as in plasma except
8. On average, ..... ml of blood is filtrated by the kidney per minute which constitute roughly ..... of the blood pumped out by each ventricle of heart in a minute
9. Which one of the four parts mentioned below doesnot constitute a part of single uriniferous tubule?
10. Processing of filtrate in the proximal and distal tubules accomplishes what important function?
11. Reabsorption of Bicarbonate ion takes place from which part of nephron?
12. Which group possess excretory structures known as protonephridia?
13. The principal nitrogenous excretory compound inhumans is synthesised
14. The renal fluid isotonic to the cortical fluid and blood is found in
15. The maximum amount of electrolytes and water(70-80 percent) from the glomerular filtrate isreabsorbed in which part of the nephron?
16. What is the main component of urine?
17. Which one of the following is a tube that carries urine from kidney to the urinary bladder?
18. Which of the following are about 90% absorbed in the nephron?
19. In mammals, which blood vessel would normally carry largest amount of urea?
20. What substance is secreted by the proximal-tubule cells and prevents the pH of urine from becoming too acidic?
21. The blood from the glomerulus is carried away by:
22. Fish gills are:
23. Glucose is taken back from glomerular filtratethrough
24. What is a glomerulus?
25. What happens to the glomerular filtration rate (GFR) when blood pressure increases?
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