Final answer:
Cell walls in plants are true to be crucial for maintaining plant shape, offering protection, and providing structural support to the cells.
Step-by-step explanation:
The statement that cell walls in plants help maintain their shape is true. The primary role of the cell wall is to provide structural support and protection to plant cells. It is a rigid covering, external to the plasma membrane, which protects the cell, provides structural support, and gives shape to the cell. The cell wall is crucial for maintaining the integrity of the plant cell against various stresses such as changes in temperature, osmotic pressure, and mechanical forces. It consists of cellulose, a polysaccharide made up of glucose units, which contributes to its rigidity. When you bite into a raw vegetable, like celery, the crunch you hear is due to tearing the rigid cell walls with your teeth.