How are these compared to each other?, hope you can help
-
Starch is a polysaccharide produced by plants as a way of storing energy. Starch is actually composed of two polysaccharides: amylose and amylopectin. Amylose has a completely linear structure whereas amylopectin has a very branched structure. Cellulose is also a polysaccharide produced by plants but this polymer is used by plants to make cell walls. It is a completely linear chain of D-glucose units. Glycogen is quite a different polysaccharide. It is a very highly branched polymer of D-glucose units but it has an enzyme in its centre called glycogenin. Glycogenin is a protein involved in the biosynthesis of glycogen. I hope this has helped!