Respuesta :
phospholipids is responsible for giving the plasma membrane the ability to block most ions and polar compounds from crossing.
The membrane that isolates a cell's interior from its surrounding environment is known as the plasma membrane, sometimes known as the cell membrane, and it is present in all cells. The plasma membrane serves as a physical barrier separating the inner cell organelles from the external environment in bacterial and plant cells. In these cell membrane, a cell wall is joined to the plasma membrane on its exterior surface. The cell includes protoplasm (or simply plasm), which is the semi-fluid living substance. The plasma membrane is a selectively permeable membrane, allowing only the transport of certain molecules both into and out of the cell. The cell membrane is made up of a lipid bilayer that is semipermeable, and it is inside of this bilayer that the living material, or plasm, is contained.
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