Why do cells need a selectively permeable barrier?

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22-04-2015
Biology

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Why do cells need a selectively permeable barrier?

Sagot :

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erin305 erin305 · Answer 1 · 2015-04-22T19:09:13-04:00

erin305 erin305

22-04-2015

well so only good stuff goes in and only bad stuff comes out.

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Kytten Kytten · Answer 2 · 2015-04-22T19:20:20-04:00

Using a selectively permeable membrane, a cell can make sure that no harmful materials enter the cell while still obtaining nutrients from its environment. If a cell did not have a selectively permeable membrane, malignant materials could enter the cell and damage or destroy it or even make it cancerous. If it didn't have a selectively permeable membrane it would also have no way of separating its own components from the environmental components around it.

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