Confidence votes 46.8K. I was born a Catholic and have never wavered in my faith in over 70 years. I had 12 years of Catholic education in my youth-both primary and secondary schools.
The carbohydrate energy storage molecule of animals is glycogen.  Glycogen is a substance deposited in bodily tissues as a store of  carbohydrates.
A view of the atomic structure of a single branched strand of glucose units in a glycogen molecule. Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body.