Which ions are selectively secreted by the Collecting Duct to maintain the pH and ionic balance of blood?

Which ions are selectively secreted by the Collecting Duct to maintain the pH and ionic balance of blood?
  1. Na⁺ and Cl⁻
  2. H⁺ and K⁺
  3. Ca²⁺ and Mg²⁺
  4. HCO₃⁻ and CO₃²⁻

Solution

The Collecting Duct plays a role in the maintenance of pH and ionic balance of blood by the selective secretion of H⁺ and K⁺ ions.

Asked in: NCERT

Practice more Excretory Products and their Elimination questions on Aicharya