It has several functions mainly:
1)Protects the inner part of the cell
2)Separates the cytoplasm from intercellular space (compartmentalization)
3)Allows the passage of ions, substances etc. by diffusion or transport proteins in or out of cell
4)Contains receptors for hormones mainly but other substances also.
5)Contains glycolipids that act as cell markers (they mark the cell in a certain tissue with a certain type for certain functions)
An animal cell has a cell membrane, not a cell wall.
Prokaryotic cells without a nucleus or other membrane bound organelles.Prokaryotes
Transport proteins help move (or "transport") large molecules that aren't able to pass through a cell's membrane, through said cell membrane through means of diffusion.
Animal cells do not have cell walls (plant cells do). The cell membrane of an animal cell controls the flow of substances in and out of the cell, and keeps the cell contents contained.
The cell membrane controls movement of materials in and out of the cell.
The selective permeability of the cell membrane
cell membrane
cell membrane
Cell Membrane
the cell membrane is as flexible barrier outside of the cell.
where is the cell control membrane and the cell membrane
Cell membrane