Remember in glycolysis we first take glucose and transform it into a glucose six phosphate and then we transform glucose phosphate into fructose six phosphate. And fructose six phosphate can either transform into fructose one six bits phosphate to contain the process of glycolysis. But when this bifunctional enzyme is in this active state, it goes on to basically transform the fructose six phosphate into fructose 26 bisphosphate. And what this molecule does is it basically creates a positive feedback loop. So this molecule, fructose 26 bisphosphate, acts as an allosteric effector, more specifically as a very potent allosteric activator of phosphorinase. And phosphorctokinase is needed to actually transform the fructose six phosphate into the fructose one six bisphosphate.