What is the basic structural difference between starch and cellulose?

Explanation

The basic difference in starch and cellulose lies in the nature of the glucose molecules present. Starch consists of two compounds i.e., amylose and amylopectin. In both of them, `alpha-D(+)` glucose molecules are present. Amylose contains linear chains of these molecules linked in `C_(1)-C_(4)` manner. In amylopectin, these linear chains are further linked in `C_(1)-C_(6)` manner.
In cellulose, `beta-D(+)` glucose molecules are linked to one another in `C_(1)-C_(4)` manner. Thus, starch and cellulose have different arrangement of the constituents.