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Sergio039 [100]
3 years ago
14

Why do cells need a selectively permeable barrier?

Biology
2 answers:
Alja [10]3 years ago
8 0
Well so only good stuff goes in and only bad stuff comes out.
eduard3 years ago
6 0
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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