The plasma membrane is a selectively permeable barrier that defines the borders of the cell and allows it to interact with its environment in a controlled way.
It is composed of a phospholipid bilayer, proteins, and carbohydrates.
The proteins embedded in the membrane are responsible for transporting molecules in and out of the cell
, and the carbohydrates act as recognition sites for cell-cell interactions.
The plasma membrane also contains cholesterol, which helps to maintain the fluidity of the membrane.
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The plasma membrane , or the cell membrane , provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is…
Cell Membrane (Plasma Membrane) - Genome.gov
A cell’s membrane is primarily made up of a double layer of phospholipids (fatlike, phosphorus-containing substances). Each layer is composed of phospholipid molecules that contain a hydrophilic (water-loving) head and…
Fast Facts about the Cell Membrane | Britannica