Question

Which is said to be the major site of selective secretion and reabsorption?

Answer 1

Proximal convoluted tubule :

1. The Proximal convoluted tubule is abbreviated as PCT.
2. It is the main site for secretion and reabsorption.
3. It forms a connection passage between Bowman's capsule and the loop of Henle.
4. The epithelial cells present in the walls of PCT increase the reabsorption as it has a large surface area.
5. It helps in the absorption of salts, water, proteins, glucose, etc
6. It secrets organic ions by a sodium-dependent pathway.