a question

Oliver Schmidt schmidto at hrzpub.tu-darmstadt.de
Tue Apr 14 03:25:59 EST 1998

Carlos Cardenas Corona schrieb:
> I know that water molecules are polar, my question is why water can pass
> through cell membranes freely?
> thanks in advance.
> Carlos

Water molecules are small enough to pass the cell membran by diffusion.
This transport is driven by osmosis whereas larger molecules like
glucose need an aktive transport mechanism


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