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AlekseyPX
3 years ago
5

Why a molecule may not be to pass into or out of a cell

Biology
1 answer:
kari74 [83]3 years ago
7 0
All cells have selectively permeable membranes, which means that they let important molecules inside the cell while leaving other ones outside. Important molecules go inside the cell by the process of diffusion or osmosis. 
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Hope this helps

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