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A corner of a water tank that has just had salt dumped into it for example would have a much higher concentration of salt than the opposite end of the tank where no salt has reached. Going from high to low concentration is going down the concentration gradient. Biological Examples Of Diffusion …

Cell membrane transport transport across a membrane how do things move across a cell membrane duration. Active transport requires an input of energy and moves molecules against their concentration gradient. Exocytosis And Endocytosis 1501902431 32 Read Biology Ck Membrane transport system is th…