* Cell Wall: This tough, outer layer is made of cellulose, hemicellulose, and pectin. It provides structural support and rigidity, giving the cell its shape.
* Turgor Pressure: Water moves into the cell through osmosis, creating pressure against the cell wall. This pressure, called turgor pressure, helps keep the cell firm and inflated. When water is lost, the cell becomes flaccid and may even wilt.
* Internal Structures: Other internal structures, like the cytoskeleton, also play a role in maintaining the cell's shape.
Key Points:
* The cell wall is the most important factor in maintaining plant cell shape.
* Turgor pressure contributes significantly to the rigidity and firmness of plant cells.
* The cytoskeleton provides additional support and helps with cell division and movement.
Let me know if you have any other questions!
