It functions as a barrier, keeping cell constituents in and unwanted substances out, and as a gate, allowing transport into the cell of essential nutrients and movement from the cell of waste products. In contrast to prokaryotes, eukaryotic cells have not only a plasma membrane that encases the entire cell, but also intracellular membranes that surround various organelles. Just as the outer layer of your skin separates your body from its environment, the cell membrane (also known as the plasma membrane) separates the inner contents of a cell from its exterior environment.
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The cell membrane thus works as a selective filter that allows only certain things to come inside or go outside the cell
The cell employs a number of transport mechanisms that involve biological membranes:
The cell membrane, also known as the plasma membrane, bounds the cell The cell membrane is composed of proteins and lipids It is a selectively permeable membrane that binds the cell and separates the cell from the outside environment. The cell membrane is semipermeable (or selectively permeable)
It is made of a phospholipid bilayer, along with other various lipids, proteins, and carbohydrates. The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment The cell membrane consists of a lipid bilayer that is semipermeable The cell membrane regulates the transport of materials entering and exiting the cell.
Cell membranes are also known as plasma membranes or cytoplasmic membranes
Cell membranes are a cell basic, prokaryotic and eukaryotic cells have a cell membrane The cell membrane separates the cell from the environment In prokaryotes the cell membrane lies beneath the cell wall.
