Why is the plasma membrane called a selectively permeable membrane: The plasma membrane is a

The plasma membrane is a thin, flexible layer that surrounds the cell. It is known as the selectively permeable membrane because it allows some molecules to pass through while preventing others. The plasma membrane is called a selectively permeable membrane because it relatively allows the movement of substances from the inside of the cell to the outside and vice-versa. This selectivity depends on the requirements of the cell and the substances present in the surroundings of the cell. The cell membrane or plasma membrane is known as a selectively permeable membrane because it regulates the movement of substances in and out of the cell . This means that the plasma membrane allows the entry of only some substances and prevents the movement of some other materials. The plasma membrane is called a selectively permeable membrane because it allows only certain molecules or ions to pass through it by means of active or passive transport.