CBSE Class 11 Biology Excretory Products And Their Elimination Worksheet Set E

EXCRETORY PRODUCTS AND THEIR ELIMINATION

→ Very Short Answer Questions

1. Fresh water fishes are ammonotelic. Why?

2. What do you understand by the terms ureotelism and urecotelism.

3. Name the gland which secretes sebum?

4. One part of loop of Henle is impermeable to water. Name it.

5. Explain the function of vasa recta.

6. Name two types of nephrons found in human kidney.

7. Define GFR. Mention its value in a healthy man.

8. What is micturition reflex?

9. Renin and Rennin, are they different? Justify.

10. Name the excretory product of (i) reptiles (ii) Prawns.

11. What are Columns of Bertini?

12. Name the excretory organs in - Planaria, Earthworm, Amphioxus, Prawns.

13. Give the exact location of Juxta glomerular apparatus(JGA) in the kidney.

→ Short Answer Questions

14. How does ascending limb of nephron differ from descending limb with reference to its permeability to water and electrolytes?

15. Describe ultra filtration. How is malpighian body adapted for it?

16. Enumerate counter current mechanism in the renal functioning.

17. Briefly explain Hemodialysis and Kidney transplantation.

18. Describe in brief about---- a) Uremia, b) Glycosuria c) Kidney stone d) Ketonuria

19. Expand ADH and enumerate the way it controls the osmoregulation in human kidney.

20. ANF acts as a check on the rennin-angiotensin mechanism. Comment on this statement.

Illustrate labeled diagrammatic representations of:

A. Longitudinal section of kidney
B. Malpighian body
C. Reabsorption and secretion of major substances at different parts of the nephron
D. Nephron and vasa recta showing counter current mechanisms

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