Question

Why is it essential that the regulatory mechanisms that activate glycogen synthesis also deactivate glycogen phosphorylase? (select all that apply.) if this were not the case, a futile cycle would consume atp needlessly. the substrate used in glycogen synthesis can also bind to glycogen phosphorylase, forming an unreactive enzyme-substrate complex. such a regulatory mechanism prevents the simultaneous addition and removal of glucose monomers, preventing unnecessary reactions. without these regulatory mechanisms, both processes would run at full speed, thus inhibiting glycolysis?

Answer 1

This is because such a mechanism of regulation prevents the simultaneous addition and removal of glucose monomers, preventing unnecessary reactions. Additionally. the two processes occur in the same location in the sell, thus this regulation makes the net process more efficient. When glycogen phosphorylase is phosphorylated its activity increases and vicevarsa.