Osmotic pressure is the pressure that builds up inside a cell and resists net water movement across its membrane.

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Osmotic pressure is the pressure that is exerted by water molecules as they move from a region of low solute concentration to a region of high solute concentration across a semi-permeable membrane. This pressure helps to maintain the shape and volume of cells, and also regulates the movement of water and solutes into and out of the cell.

Osmotic Pressure Is the Pressure That Builds Up Inside a Cell