Active transport takes place in the absorption of

Removal of the proximal convoluted tubule from the nephron will result in:

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 $Q$.
$P \quad\quad\quad Q$

What is the duct of Bellini?

In the kidney,glucose is mainly absorbed in

Reabsorption in the tubules of nephrons occurs by the process of