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Question

Why plasma membrane is called selectively permeable membrane?

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Solution


Plasma membrane is a outermost layer of the living cell.

It is a bi-lipid layer,consisting of a few protein molecule.

Plasma membrane is called as a selectively permeable membrane, because it allows only certain molecule to pass through the cell membrane. like oxygen,carbon dioxide,minerals some protiens etc

It is highly selective in deciding which molecules are to be allowed to pass through the membrane .


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