Solution of Chapter 19. Excretory Products and their Elimination (Biology NCERT Book)

NCERT Questions

1 Define Glomerular Filtration Rate (GFR)
2 Explain the autoregulatory mechanism of GFR.
3 Name the following:(a) A chordate animal having flame cells as excretory structures(b) Cortical portions projecting between the medullary pyramids in the human kidney(c) A loop of capillary running parallel to the Henle’s loop.
4 Give a brief account of the counter current mechanism.
5 Describe the role of liver, lungs and skin in excretion.
6 Explain micturition
7 What is meant by the term osmoregulation?
8 Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?
9 What is the significance of juxta glomerular apparatus (JGA) in kidney function?