Q. The selective secretion of hydrogen ion, ammonia and potassium into the filtrate takes place mainly in

 3509  218 NTA AbhyasNTA Abhyas 2020Excretory Products and their Elimination Report Error

Solution:

Functions of PCT:
PCT absorbs almost all essential nutrients.
PCT absorbs about 70%-80% electrolytes and water.
As PCT selectively secretes H+ ions, ammonia and potassium ions into the filtrate and also absorbs HCO3- from it, it maintains the pH and ionic balance of the body fluids.