Cell Membrane Definition Simple. In plant cells, the membrane encapsulates the protoplasm. This organelle is also referred to as plasma membrane.
Proteins and lipids are the major components of the cell membrane. Not all can diffuse freely via simple diffusion. The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm.
The cell membrane regulates the transport of materials entering and exiting the cell.
This organelle is also referred to as plasma membrane. Cell membrane, also called plasma membrane, thin membrane that surrounds every living cell, delimiting the cell from the environment around it. The cell membrane is designed to hold the cell together and to isolate it as a distinct functional unit of protoplasm. The cell’s outer membrane made up of a two layers of phospholipids with embedded proteins, and separates the contents of the cell from its outside environment, as well as regulates what enters and exits the cell.