Summary
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.
1
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.
According to
