How does the cell wall protect a plant cell? The cell wall is thick and fibrous and provides a barrier between the cell and its external environment. The cell wall does not protect the cell because the cell membrane does. The cell wall is thin and flexible, which allows the cell to be moved without harming the organelles. The cell wall is on the inside of the cell and serves to contain the contents of the cell.
It is the third one i learned this a long time ago God Bless hope this helped.