Identify the incorrect statement from the following.

Starch is a polysaccharide consisting of two components: amylose and amylopectin. Both are polymers of $$\alpha$$-D-glucose, so Option 2 is correct.

Amylose is the linear (unbranched) component of starch, in which glucose units are linked by $$\alpha$$-1,4-glycosidic bonds forming a helical structure. It is NOT a branched chain polymer. Amylopectin is the branched component of starch, having both $$\alpha$$-1,4 linkages in the main chain and $$\alpha$$-1,6 linkages at branch points.

Therefore, Option 1 — "Amylose is a branched chain polymer of glucose" — is the incorrect statement, since amylose is actually a linear (unbranched) polymer.

For completeness: Option 3 is correct (cellulose has $$\beta$$-1,4-glycosidic linkages), and Option 4 is correct (glycogen is indeed called animal starch, with even more branching than amylopectin).

The incorrect statement is Option 1.