Cellulose Cellulose, 1,4-β-D-glucan, is a linear homopolymer of glucose and the main single constituent of the plant kingdom. Cellulose consists of up to ~ 20 000 β-D-glucopyranosyl units linked together with 1,4-glycosidic bonds. It exists in the cell wall in the form of elementary fibrils (EFs) that form the shapes of the cells and provide them
