Diffusion and Osmosis

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GCSE Biology> Cell Activity> Diffusion and Osmosis
Diffusion
When particles move from an area of high concentration to an area of low concentration. Diffusion can occur in liquids and gasses
Osmosis
Osmosis is a kind of diffusion which only occurs with water. With osmosis, there is a membrane which does not allow dissolved material to pass though it but only water (selectively permeable) Osmosis is the movement of water molecules from a weak solution to a strong solution. Osmosis occurs when water is taken up e.g. Plants take up water from the ground.
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