Question

what is plasma membrane and why called a selectivity permeable membrane?​

Answer 1

Answer:

plasma membrane is the outer covering of the cell.

Plasma membrane allows only selectected molecules inside the cell.

Answer 2

The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. ... If plasma membrane ruptures or breaks down then molecules of some substances will freely move in and out of the cells.