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Why is the selective permeability of the plasma membrane essential for normal cell function?

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Waste must be let out of the cell, while nutrients must be kept in. At the same time, nutrients must be let in, and toxins must be kept in.
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What is a selectively permeable membrane and how does it function?

It is a membrane in cells that only allows certain things in. For example a long time ago large and small cats had an epidemic of acquired immune deficiency syndrome (aids). a

What is the function of a selectively permeable membrane?

selectivley permeable membranes only allow certain materials to  pass through.   It allows some molecules to enter the cell and blocks entry to  others.

Why is the plasma membrane selectively permeable?

The plasma membrane is selectively permeable because it needs to allow certain things in and certain things out. The plasma membrane is a selectively permeable membrane as i

Why is it important that the plasma membrane is selectively permeable?

It permits to enter different important ingredients and different types of salts to cytoplasm which is important to cell growth, function and metabolism but don't allow to tra

Why is the plasma membrane called selectively permeable?

Let trans-membrane transport of molecules be either passive, or facilitated, or active: the plasma [bi-lipid layer] membrane has the power to exclude molecules It selects from