7.3
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Created by:
camgreene3 on November 21, 2011
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8 terms
Terms | Definitions |
|---|---|
 diffusion | the act of dispersing or diffusing something |
| facilitated diffusion | movement of specific molecules across cell membranes through protein channels |
| aquaporins | Water channel proteins that allow water to pass right through them |
| osmosis | diffusion of water through a selectively permeable membrane |
| isotonic | equal concentration |
| hypertonic | when comparing two solutions, the solution with the greater concentration of solutes |
| hypotonic | (of a solution) having a lower osmotic pressure than a comparison solution |
| osmotic pressure | pressure that must be applied to prevent osmotic movement across a selectively permeable membrane |
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