Food Chemistry and Fish in Nutrition

6.2. 2.Glycogenesis

6.2.2.Coversion into Glycogen and degradation

      The absorbed free glucose is phosphorylated to glucose 6   phosphate by hexokinase using ATP. The fructose, galactose  and mannose absorbed are also converted into glucose 6 phosphate. This compound is then metabolized by major metabolic path ways. Glucose 6-phosphate is dephosphorylated by glucose 6-phosphate to yield free-D-glucose, which passes into the systemic blood to be transported to other tissues.

 

                          i). Glycogenesis

Glycogenesis is the process of biosynthesis of glycogen from glucose and occurs mainly in muscle and liver. The following steps are involved