Cellulose is a polysaccharide and is made of
1
β-D-glucose units joined through 1, 4-glycosidic linkages
2
a-D-glucose units joined through 1,4-glycosidic linkages
3
α-D-glucose units joined through 1, 6-glycosidic linkages
4
α-D-glucose units are linked by 1,6-glycosidic linkages