Question

why is plasma membrane called semi permiable membrane?write one function of it​

Answer 1

plasma membrane is called semi permeable membrane because it allows only selected solvent or solute to enter or go out of a cell.

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Answer 2

Plasma membrane or cell membrane is called semi-permeable membrane because it allows water molecules to pass through it but does not allow solute particles to pass through.

Its function is to keep the contents of the cell enclosed so that they do not spill out.