Now, let's move on to starch. So if glycogen is the energy storage in animals and humans, starch is the energy storage in plant. So the most common polysaccharide in plants used for energy storage is starch. And unlike glycogen, which comes in one form, starch actually comes in two forms. We have a starch known as amylose and a starch known as amylopectin. Now, Amylose essentially consists of only one type of bond, the alpha one four glycositic bond.