AQA GCSE BIOLOGY UNIT 2 - Movement into and out of cells

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  • Created by: katherine
  • Created on: 20-04-11 13:00

Movement in and out of cells

To get into or out of cells, dissolved substances have to cross the cell membranes

Solutes: particles in solution e.g. glucose, sodium ions, chloride ions

Solvent: liquid in which the particles are dissolved e.g. water

Solute and Solvent molecules move around randomly

Solutes can move in and out of cells by diffusion and osmosis;


Diffusion is the spreading of the particles of a gas, or any substance in solution, resulti


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