AQA GCSE BIOLOGY UNIT 2 - Movement into and out of cells
- Created by: katherine
- Created on: 20-04-11 13:00
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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
Diffusion is the spreading of the particles of a gas, or any substance in solution, resulti…
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