Excretory Products And Their Elimination Ques 49

49. Glucose is taken back from glomerular filtrate through

[1993]

(a) Active transport

(b) Passive transport

(c) Osmosis

(d) Diffusion

Show Answer

Answer : a

Hints & Solutions

(a) Active transport. Under normal circumstances, up to $180 g /$ day of glucose is filtered by the renal glomerulus and virtually all of it is subsequently reabsorbed in the proximal convoluted tubule. This reabsorption is effected by two sodium-dependent glucose cotransporter (SGLT) proteins.