Osmosis and Water Balance

Osmosis is the movement of free water molecules through a semipermeable membrane. In this process, water moves from a region with a high concentration of free water molecules to a region with a lower concentration of free water molecules. The membrane allows water to pass, but it limits the diffusion of solutes dissolved in ...

Osmosis is the movement of a solvent, such as water, from a lower to a higher solute concentration across a semipermeable membrane.

The number of solute particles per liter of a solution is called osmolarity. It determines the osmotic pressure— the minimum pressure required to prevent osmosis.

In a cell, if the osmolarity inside is...