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| Fuction of the cell membrane |
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Definition
| Barrier between inside and outside of cell |
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| move materials across membrane |
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| transport materials across bilayer |
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| act as an attachment point for other cells |
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| allows somethings though; sugar not salt |
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| move from more concentrated area to less concentrated area |
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| diffusions' purpose; same amount inside and outside of cell. |
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| molecules are in differnt concentration inside and outside of cell. diffuse to lower gradient |
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| moves out of a cell; cell shrinks higher concentration outside of cell. |
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| moves into cell; cell grows. |
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| 4 ways organisims deal with osmosis. |
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fresh water --> pump water out using contractile vacule
cytosis--> cell expands till it explodes
multi cellular --> pump solutes out; mimick environment
plants--> turger pressure |
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| Cell wall prevents cell from taking more water |
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