Final answer:
The statement that all cell walls contain the same components is false. Plant cell walls mainly contain cellulose, whereas prokaryotic cell walls are composed of peptidoglycan, and other organisms have different cell wall compositions, such as chitin in fungi.
Step-by-step explanation:
Not all cell walls contain the same components; this statement is false. Cellulose is the major organic molecule in plant cell walls, forming a rigid structure that provides protection, structural support, and shape to the plant cells. The crunch you feel when biting into a raw vegetable like celery is due to these rigid cell walls. In contrast, the chief component of prokaryotic cell walls is peptidoglycan, which differs markedly from the cellulose in plants. Other organisms, such as fungi and some protists, also have cell walls but with different structural molecules. For instance, fungi have chitin in their cell walls. Moreover, animal cells do not have cell walls, showcasing the diversity of cell wall compositions across different life forms.