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During urine formation, which of the following processes create high osmotic pressure in the uriniferous tubule?

a)

Active  absorption, followed by absorption of

b)

Active  absorption, followed by absorption of  

c)

Active secretion of  into efferent arteriole followed by absorption of  into efferent renal arteriole

d)

Active secretion of  and absorption of  into efferent renal arteriole


Question ID - 4007 | Toppr Answer

During urine formation, which of the following processes create high osmotic pressure in the uriniferous tubule?

a)

Active  absorption, followed by absorption of

b)

Active  absorption, followed by absorption of  

c)

Active secretion of  into efferent arteriole followed by absorption of  into efferent renal arteriole

d)

Active secretion of  and absorption of  into efferent renal arteriole

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

Osmotic pressure is a measure of tendency to take in water by osmosis. During urine formation, approximately two-thirds of the  and water filtered into Bowman’s capsule is immediately reabsorbed across the walls of proximal convoluted tubule. This reabsorption is driven by active transport of out of the filtrate and into surrounding peritubular capillaries. follows passively because of electric attraction and water follows them both because of osmosis.



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