Glycogen

• Glycogen is the storage polymer in animal cells (and some fungi). It is mainly found in muscle and liver cells
• Glycogen is a highly branched form of alpha-glucose, (1,6) branches, more branched than amylopectin. This structure allows it to be rapidly broken down into glucose for use in respiration.
• glycogen is insoluble for storage = no effect on osmosis
• glycogen has a non-helical shape
• Glycogen is more highly branched than amylopectin