Correct Answer: Cell wall

Solution : The correct answer is Cell wall .

The outermost covering of the plant cell is known as the cell wall. It is present outside the cell membrane. The cell wall is a rigid, tough, and flexible structure. It gives shape to the cell and also protects the cell from damage and infection. Additionally, it helps in cell-to-cell interaction. The cell wall of plants is made up of cellulose, proteins, etc.