What would happen if the plasma membrane ruptures or breakdown?

If the plasma membrane ruptures or breaks down, the cell will no longer be able to control the movement of substances in and out. As a result, essential cell contents may leak out, and harmful substances may enter the cell.

Since the plasma membrane protects the cell and maintains its internal environment, its damage disrupts normal cellular activities. In most cases, the cell cannot survive for long and eventually dies.

In simple terms, the plasma membrane acts like a protective boundary, and without it, the cell loses its structure and function.