Assertion (A): | Juxta Glomerular Apparatus (JGA) plays an important role in regulation of glomerular filtration rate (GFR). |
Reason (R): | A fall in GFR can activate the J.G. cells to release renin which can stimulate the glomerular blood flow and thereby bringing the GFR to normal level. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
The part of nephron involved in active reabsorption of sodium is:
1. distal convoluted tubule
2. proximal convoluted tubule
3. Bowman's capsule
4. descending limb of Henle's loop
Which one of the following statement with regards to the excretion by the human kidneys is correct?
1. | Descending limb of Loop of Henle is impermeable to water |
2. | Distal convoluted tubule is incapable of reabsorbing HCO3 |
3. | Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules |
4. | Ascending limb of Loop of Henle is impermeable to electrolytes |