Glycogenesis is the process of glycogen synthesis, in which glucose molecules are added to chains of glycogen for storage. The phases of glycogenesis are examined in this article, along with the mechanisms for control and regulation that underpin it. Glycogen is a polysaccharide that acts as the primary storage unit of glucose in cells of both humans and animals. The empirical formula of the compound is (C6H10O5)n, which was established by Kekulé in 1858. Important functions include the creation of phosphate for the short term and triglyceride stored in adipose for the long term. Two Forms: Glycogen synthase exists in two forms— glycogen synthase a (active) and glycogen synthase b (inactive). The difference lies in the phosphorylation state, with glycogen synthase b being more phosphorylated. Glycogen is a form of glucose that your body stores mainly in your liver and muscles. Your body needs carbohydrates from the food you eat to form glucose and glycogen.