Question

why cell membrane called selectively permeable membrane​

Answer 1

Answer:

Cell membrane or plasma membrane is called selectively permeable membrane because it allows only selected materials to enter or exit the cell body.It allows only required materials to enter.Therefore,plasma or cell membrane is regarded as the selectively permeable membrane.

Answer 2

Cell membrane is also called as selectively permeable membrane as it allows only some materials or some cells to pass through it while restricting other materials or cells.