Here's why:
* Structure: The cell wall is a rigid, outermost layer that surrounds the cell membrane of plant cells. It provides structural support and protection.
* Protection: The cell wall acts as a barrier against physical damage, pathogens, and osmotic stress (changes in water pressure).
* Shape: The cell wall helps maintain the shape of the plant cell, giving it its characteristic structure.
* Composition: It is primarily composed of cellulose, hemicellulose, and pectin, giving it strength and flexibility.
While other structures within a plant contribute to overall protection, the cell wall is the primary protective layer for individual plant cells.
