Botany - Cell - The Unit of Life Question with Solution | TestHub

Plasma membrane or the cell membrane which is made up of phospholipid bilayer with embedded proteins. It is a semipermeable membrane which allows ions and selected molecules to pass in and out of the cell. In bacteria, the cell wall is attached to the plasma membrane and plays the same role as a semipermeable membrane. The plasma membrane protects the cell from the outside environment.