Chemistry - Biomolecules Question with Solution | TestHub

Starch is a polysaccharide composed of two components: amylose and amylopectin.

Both amylose and amylopectin are polymers of $\alpha$-D-glucose.

Amylose is a linear polymer with C1-C4 glycosidic linkages, while amylopectin is a branched polymer with C1-C4 and C1-C6 glycosidic linkages.

Therefore, starch is formed by the polymerization of $\alpha$-D-glucose.

Answer: $\alpha$-D-glucose.