Polysaccharides are complex carbohydrates that can compose of thousands of repeating glucose units. They allow for the storage of large quantities of glucose. Starch being the common storage form of carbohydrates in plants has two types, Amylose and Amylopectin. Amylose being a straight chain polymer and Amylopectin being highly branched. Sources of starch include potatoes, beans, bread, pasta, rice and other bread products.