How does the cell membrane protect the cell?

Answer 1

A cell membrane protects a cell by controlling what substances go in and out of the cell. It lets good products go inside, but harmful products go out, which is basically protecting the cell.

Think about a cell membrane as Immigration or border patrol. Border patrol or immigration protects a city and allows good people to come in, and bad people to go out, just like a cell membrane.

Answer 2

It acts like a skin or barrier to keep harmful materials outside the cell, plus keep imortant things inside. It works by being semi-permeable, which means having small openings that allow certain things in and out, like water and small molecules, like simple sugars, while keeping larger molecules out.

Answer 3

it controls what goes in and out of the cell.