The Function of a Cell Membrane

The cell membrane plays a crucial role in a cell's functioning. It acts as a protective barrier, regulating the passage of substances in and out of the cell. Additionally, the cell membrane contains various proteins that facilitate important cellular processes such as signal transduction and cell recognition. This vital structure also helps maintain the cell's shape and provides structural support. In essence, the cell membrane is essential for maintaining homeostasis within the cell and ensuring that it can carry out its functions effectively.