Question

The reabsorption of glucose from the glomerular filtrate is due to

• A. High osmotic pressure of filtrate
• B. Passive diffusion
• C. Active transport across the walls of proximal convoluted part
• D. Filtration pressure exerted on the fluids in the loop of Henle

Answer 1

Answer: (C)

Active transport across the walls of proximal convoluted part

PCT is lined by simple cuboidal brush border epithelium which increases the surface area for reabsorption. Nearly all of the essential nutrients and 70-80% of electrolytes and water are reabsorbed by this segment. From the glomerular filtrate, almost all the glucose is actively transported across the walls of the proximal convoluted tubule.

So, the correct answer is 'Active transport across the walls of proximal convoluted part'.