<prompt> Following statements are true with respect to glycogen exceptPrinciple storage of carbohydrate in the human body is glycogenLiver and muscle are the main sites of glycogen storageProduced by glycogenesisInsulin stimulates glycogenolysis  <response>: Insulin inhibits glycogenolysis by oring the inactivation of glycogen phosphorylase and inhibiting glucose-6-phosphatase. The net effect of all these three mechanisms, blood glucose level is lowered.Ref: DM Vasudevan, 7th edition, page no: 321 