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Diffusion
Diffusion is the net overall movement of particles from an area of Higher concentration to an area of lower concentration
Osmosis is a special case of diffusion
Osmosis is the net movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration
Active transport works against a concentration gradient
Active transport is the movement of particles across a membrane against a concentration gradient from an area lower to an area of Higher concentration using energy transferred during respiration
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