Question

why is the plasma membrane called a selective permeable membrane

Answer 1

IT IS BECAUSE , Plasma membrane allows some material to pass through it while on the same time it blocks other material from entering through it… In other words its selects materials that can enter the cell… that`s the reason it is called as selectively permeable membrane.

Answer 2

Plasma membrane is called as selectively permeable membrane because it allows to pass only certain materials from it.