<prompt> Cofactor for Glycogen phosphorylase in Glycogenolysis isThiamine pyrophospohatePyridoxal phosphateCitrateFAD  <response>: Glycogen phosphorylase removes glucose as glucose-6- phosphate from glycogen. It contains pyridoxal phosphate as prosthetic group.Ref: DM Vasudevan, 7th edition, page no: 124 