Question

Function of cell membrane/plasma membrane

Answer 1

hlo..

here the ans is..______

the plasma membrane checks the entrance ans exit of the substances. it allows or permits  only the entrance of useful substances and does not allows the  unwanted ,harmful bacteria in and out of the cell..it also prevents movement of some other materials.the cell membrane ,therefore, is called a selectively permeable membrane...

hope my ans helps u..

Answer 2

To protect the cell is the main function of plasma membrane