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katovenus [111]
3 years ago
7

Explain why some substances are able to pass through the cell membrane

Biology
2 answers:
VashaNatasha [74]3 years ago
6 0
The most important property of the cell membrane<span> is its selective permeability: </span>some substances<span> can </span>pass through<span> it freely, but others cannot. Small and nonpolar (hydrophobic) molecules can freely </span>pass through<span> the </span>membrane<span>, but charged ions and large molecules such as proteins and sugars are barred passage. </span>
slega [8]3 years ago
4 0
Selective permanently, is the reason why the cell membrane only let's certain things pass through. small noon polar molecules (oxygen & carbon dioxide) pass through by simply diffusing. But other molecules use other types of passive transport or active transport.
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