GENERAL HISTOLOGY

Detailed explanation-1: -An example of a selectively-permeable membrane is the cell membrane. It allows the passage of only certain types of molecules through diffusion and occasionally by facilitated diffusion. Synonyms: semipermeable membrane; partially-permeable membrane; differentially-permeable membrane.

Detailed explanation-2: -Other types of semipermeable membranes are cation-exchange membranes (CEMs), anion-exchange membranes (AEMs), alkali anion exchange membranes (AAEMs) and proton-exchange membranes (PEMs).

Detailed explanation-3: -Semipermeable membrane describes a membrane that allows some particles to pass through (by size), whereas the selectively permeable membrane “chooses” what passes through (size is not a factor).

Detailed explanation-4: -The plasma membrane is called as selectively permeable membrane because it regulates the movement of substances in and out of the cell. It means that the plasma membrane allows some material to pass through it while at the same time it blocks other material from entering through it.