Lab 6: osmosis and diffusion

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9 Terms

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Diffusion

Movement of molecules from an area of higher concentration to an area of lower concentration

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solute

the substance that is dissolved in a solvent

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Solvent

A liquid substance capable of dissolving other substances

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Solution

A mixture that forms when one substance dissolves another

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facilitated diffusion

Movement of specific molecules across cell membranes through protein channels

-passive transport

-some call it dialysis

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Osmosis

Diffusion of water through a selectively permeable membrane

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Tonicity

Relative concentration of solutes in solutions.

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Turgidity

in plants, the movement of water in and out of the membrane

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hemolysis

the rupture or destruction of red blood cells.