<prompt> Enzymes not used in glycogen metabolismGlycogen phosphorylase BGlycogen synthase IGlycogen synthase CGlycogen synthase D  <response>: The liver phosphorylase-b is the inactive form. It becomes active on phosphorylation. The active form is phosphorylase-a.Glycogen synthase exists in two distinct forms that can be interconveed by the action of specific enzymes; active dephosphorylated glycogen synthaseglucose-6-p-independent and less active, phosphorylated glycogen synthase Dglucose-6-p-dependent.Ref: DM Vasudevan, page no: 127 