LIFE SCIENCE

Detailed explanation-1: -Why is a cell’s membrane similar to a city wall? In the cell, an outer membrane – the plasma membrane, performs a similar function to the City Wall or City Ring Road. It completely surrounds the cell and provides the boundary between one cell and the next.

Detailed explanation-2: -The cell membrane controls what goes into and out of the cell as the city limits control what goes in and out of the city.

Detailed explanation-3: -The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. In bacterial and plant cells, a cell wall is attached to the plasma membrane on its outside surface.