City limits/police department because it controls what goes in and out of the cell. City limits control what is in and out of the city
The part of the city that is similar to the cell membrane is represented by city boundaries or the police department, as both regulate what enters and leaves. They provide a selective barrier that maintains safety and order, essential for the overall functioning of the environment. This is akin to how a cell membrane controls the substances that pass in and out of a cell.
;