Question

why is plasma membrane called a selectively permeable membrane​

Answer 1

Answer:

Selectively permeable membrane

Explanation:

As it allows only selected substances like salts, waters and other ions into the cell, it is called so. This world is self explanatory. And this membrane is the one which separates the cell from other cells.

Answer 2

The plasma membrane allows or permits the entry and exit of some materials in and out of cell. it also prevents movement if some other unnecessary materials . the cell membrane is therefore called as selectively permeable membrane.