Which of the following is a function of the cell wall?

The cell wall serves primarily as a protective and supportive structure for the cell. It is a rigid layer that lies outside the cell membrane, providing strength to the cell and helping it maintain its shape. This is particularly important in plants, bacteria, fungi, and some protists, where the cell wall prevents osmotic lysis (bursting due to influx of water) and provides structural integrity. By supporting the cell and protecting it from mechanical stress, the cell wall allows organisms to thrive in various environments.

In addition to physical support, the cell wall contributes to the overall robustness of the organism, allowing it to withstand various external conditions, such as changes in temperature and pressure. It also plays a role in the interaction between the cell and its environment, including involvement in processes such as cell-cell communication, albeit the primary function remains protection and support.