Question

Starch molecules are polymer with repeating glucose units. Select the correct statement.

• A. Glucose units are joined through $\beta$-glycosidic linkage
• B. The branches of amylopectin are linked to the chain with $\alpha$-1,4'-glycosidic linkages
• C. The linear linkages of amylopectin are formed by $\alpha$-1,4'-glycosidic bond
• D. Amylose has an unbranched skeleton of glucose molecules with $\alpha$-1,6'-glycosidic linkages

Answer 1

The correct option is C The linear linkages of amylopectin are formed by $\alpha$-1,4'-glycosidic bond

There is only difference. In starch, all the glucose repeat units are oriented in the same direction. The linear linkage of amylopectin are formed by $1,4-$glycosidic bond.