Glycogen phosphorylase is active in: (A) Phosphorylated form, (B) Dephosphorylated form, (C) Both phosphorylated & dephosphorylated form, (D) No rate of phosphorylation
Answer is A. 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