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KF 22 transport of substances in cells
Terms in this set (9)
The spreading out of gas or liquid particles from an area of high to low concentration
The movement of water molecules across a membrane from high to low (water) concentration
The movement of dissolved solutes across a membrane from low to high concentration, needs energy!
The difference in concentration between an area of high concentration and one of lower concentration
Which molecules move in osmosis?
Do molecules move up or down the concentration gradient in osmosis?
Do molecules move up or down the concentration gradient in diffusion?
Do molecules move up or down the concentration gradient in active transport?
What does active transport need in order for it to take place?
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