Studies of selective reabsorption in humans were conducted by:

Acidogenesis is:

Draw a labelled diagram showing reabsorption and secretion of major substances at different parts of the nephron.

Components reabsorbed by passive transport - $P$
Components reabsorbed by active transport - $Q$
$I - Na^+$,$II$ - Glucose,$III$ - Nitrogenous wastes,$IV$ - Amino acids,$V$ - Water
Select the correct option for $P$ and $Q$.
$P \quad \quad Q$

Glucose,$Na^+$,and amino acids are actively transported substances,because

In which segment of the nephron does the conditional reabsorption of $Na^+$ and water occur?