Osmosis
Osmosis is the The random movement of a substance from a region of high concentration to a region of low concentration of water molecules from a dilute solution (high concentration of water) to a more concentrated solution (low concentration of water) across a The property of a membrane that controls the movement of molecules depending on their size..
By doing this, water moves down the The difference in concentration between two solutions, between different cells or between cells and a surrounding solution..
A selectively permeable membrane allows some small substances to pass through but prevents larger substances doing the same.
The cell wall is totally permeable and has no role in controlling what enters and leaves a cell.
It is a rigid structure that provides a plant cell with support and keeps non-woody plants upright.