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

What is the movement of water by diffusion called?

$A$ plasmolysed cell can be deplasmolysed by placing it in

What occupies the space between the cell wall and the shrunken protoplast in the plasmolysed cell?

Why can osmosis not be demonstrated by a potato osmoscope using a solution of $NaCl$ instead of sugar? This is because the potato tissue is:

$A$ cell swells up when kept in