<prompt> Glycogen phosphorylase is active inPhosphorylated formDephosphorylated formBoth phosphorylated dephosphorylated formNo rate of phosphorylation  <response>: The phosphorylase -b is the inactive form. It becomes active on phosphorylation. The active enzyme denoted as phosphorylase -aRef: DM Vasudevan, 7th edition, page no: 127 