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what is diffusion
diffusion is the movement of particles from an area of high concentration to low
what is osmosis
osmosis is the passive movement of water particles from a dilute to a more concentrated solution through a partially permeable membrane
what is a partially permeable membrane
a partially permeable membrane acts as a sort of night club guard only letting in certain things and not allowing in others
what is active transport
active transport is the overall movement o chemicals across a cell membrane from a region of low concentration to hight using energy released by respiration
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