Here's why:
* Rigid Structure: The cell wall is made primarily of cellulose, a tough and rigid carbohydrate. This gives the cell its shape and provides structural support.
* Protection: The cell wall also protects the delicate cell membrane and internal components from damage.
* Pressure Regulation: It helps maintain the turgor pressure within the cell, keeping it firm and preventing wilting.
While other non-living components like the vacuole (filled with water) contribute to cell firmness, the cell wall is the primary structural element responsible for plant cell support.
