$A$ plant cell attains turgidity due to

If the external solution is less concentrated than the cytoplasm,it is called $P$. If the external solution is more concentrated than the cytoplasm,it is called $Q$. If the external solution balances the osmotic pressure of the cytoplasm,it is called $R$.

Identify the given cells $P$,$Q$,and $R$.

The intake of water into cells is known as:

Read the given statements regarding the different stages of plasmolysis and choose the correct option.
$I.$ First stage of plasmolysis,when osmotic concentration of cell sap is just equivalent to that of external solution.
$II.$ Protoplast withdraws itself from the corners of the cell wall.
$III.$ Protoplast gets detached from the cell wall and attains a spherical shape.

If a cell is reduced in size on placing it in a sugar solution,the solution is: