How does covalent regulation affect the activity of glycogen phosphorylase?

Given a glycogen molecule with multiple branches, how does glycogen phosphorylase facilitate the removal of glucose monomers?

What is the impact of serine phosphorylation on the interconversion between phosphorylase a and b forms?

During muscle contraction, which form of glycogen phosphorylase is more active and why?

What role does allosteric regulation play in the activity of glycogen phosphorylase?

What is the significance of the equilibrium between r and t states in phosphorylase a and b forms?

Which condition is likely to inhibit liver glycogen phosphorylase activity?