Here's why:
* Protection: The cell membrane acts as a barrier, separating the cell's internal environment from the external environment. It controls what enters and exits the cell, protecting it from harmful substances and maintaining a stable internal environment.
* Regulation: The cell membrane is selectively permeable, meaning it allows some substances to pass through while blocking others. This regulation is crucial for maintaining the cell's internal environment and carrying out essential functions.
* Communication: The cell membrane plays a role in cell communication. It contains receptors that bind to signaling molecules, allowing cells to respond to their environment.
* Structure: The cell membrane provides structural support to the cell, helping to maintain its shape.
Without a cell membrane, cells would not be able to survive.
