A membrane which allows selective movement of molecules through it is own as?

A membrane that allows selective movement of molecules through it is own a Semipermeable membrane.
It is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by osmosis.
The rate of passage depends on the pressure, concentration, and temperature of the molecules or solutes on either side, as well as the permeability of the membrane to each solute.
Biological membranes are selectively permeable, with the passage of molecules controlled by facilitated diffusion, passive transport or active transport regulated by proteins embedded in the membrane.