Describe the importance of the cell membrane.

The cell membrane is a vital structure that forms the outer boundary of the cell and plays a key role in maintaining cellular integrity.

It is selectively permeable, meaning it controls the movement of substances into and out of the cell. This ensures that essential nutrients enter the cell while waste products are removed.

The cell membrane also helps in maintaining the internal environment of the cell by regulating the balance of ions, water, and other molecules.

It provides protection and support to the cell and facilitates communication with other cells through receptors present on its surface.

Additionally, the membrane is involved in processes such as diffusion, osmosis, and active transport, which are essential for cell survival.

Thus, the cell membrane is crucial for regulating exchange, protecting the cell, and maintaining proper cellular function.