The duties of the cell membrane is the cell separation from the environment around the cell. Selected substances to pass through-out the cell and is a vital part of the interface between a cell together.
The function of the cell membrane is separated from the environment surrounding the cells. Select compounds to pass - out of the cell. And are essential for communication between cells together.
Function of cell membranes is separate from the environment around the cell. The cell Selection of the substance to pass into or out of the cell. And is part of the contact between the cells together.