$PCT$ helps in the maintenance of $pH$ in the body fluid by

The substance which is completely reabsorbed from the filtrate in the renal tubule under normal conditions is

Classify the following substances as actively or passively transported during the reabsorption of $GFR$: glucose,amino acids,nitrogenous wastes,$Na^+$,water.

Components reabsorbed by the Proximal Convoluted Tubule $(PCT)$ - $P$
Components secreted by the Proximal Convoluted Tubule $(PCT)$ - $Q$
$I - K^{+}$,$II - \text{Ammonia}$,$III - HCO_{3}^{-}$,$IV - \text{Essential nutrients}$,$V - 70$ to $80\%$ $\text{electrolytes and water}$,$VI - H^{+}$
Select the correct option for $P$ and $Q$.
$P \quad\quad\quad Q$

Choose the mismatched part of the nephron with its function.

The efferent arteriole emerging from the glomerulus forms a fine capillary network around the renal tubule, which is called .......