NEETZoologyExcretory Products and their Elimination
Conditional reabsorption of ___(A)___ and ___(B)___ takes place in ___(C)___
Options
- AA- Na+ B – H2O C – DCT
- BA- K+ B – H2O2 C – Loop of Henle
- CA- K+ B – H2O C – PCT
- DA- NH3 B – Na C – PCT
Correct answer
A. A- Na+ B – H2O C – DCT
Step-by-step solution
The ascending limb is impermeable to water but allows transport of electrolytes actively or passively. Therefore, as the concentrated filtrate pass upward, it gets diluted due to the passage of electrolytes to the medullary fluid. Distal Convoluted Tubule (DCT): Conditional reabsorption of Na+ and water takes place in this segment. DCT is also capable of reabsorption of HCO3 – and selective secretion of hydrogen and potassium ions and NH3 to maintain the pH and sodium-potassium balance in blood.