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5 Cards in this Set

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  • Back
selectively permeable
a property of cell membranes that allows some substances to pass through, while others cannot.
diffusion
the process by which molecules move from an area of higher concentration to an area of lower concentration.
-the main method by which small molecules move across the cell membrane.
osmosis
the diffusion of water molecules through a selectively permeable membrane.
active transport
the movement of materials through a cell membrane using cellular energy.
passive transport
the movement of materials through a cell membrane without using energy.