Question

Choose the correct answers from the following given.
The majority of water and salt filtered into Bowmans capsule is reabsorbed by

• A. the brush-border of the transport epithelia of the proximal convoluted tubule
• B. diffusion from the descending limb of the loop of Henle into the hyperosmotic interstitial fluid of the medulla
• C. active transport across the transport epitheium of the thick upper segment of the ascending limb of the loop of Henle
• D. selective secretion and diffusion across the distal convoluted tubule

Answer 1

The correct option is A the brush-border of the transport epithelia of the proximal convoluted tubule

Proximal convoluted tubule (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 percent of electrolytes and water are reabsorbed by this segment.

So the correct answer is the brush border of the transport epithelia of the proximal convoluted tubule.