Where is cellulose predominantly found?

Cellulose is predominantly found in plants, where it serves as a major component of the cell wall. This polysaccharide provides structural support, making plant cells rigid and helping them maintain their shape. The unique arrangement of cellulose fibers allows plants to withstand various stresses and provides a strong framework, which is essential for maintaining turgor pressure and withstanding environmental conditions.

In contrast, while fungi have cell walls, they typically contain chitin rather than cellulose. Animal tissues are primarily composed of proteins and do not utilize cellulose as a structural component. Bacteria may have a cell wall made of peptidoglycan, and while some can produce cellulose, it is not their predominant component. Hence, the presence of cellulose as a fundamental material in the structure of plants underscores its predominant role specific to that kingdom.