So this is our step. So we begin with glucose that is eventually transformed to fructose one six bisphosphate this molecule here, so many more steps take place. Then we have PEPSO phosphate, enochyruvate and the pyruvate kinase transforms this molecule into Pyruvate and ATP. Now, the same exact alosteric molecules that we spoke about in our discussion of skeleton muscle cells also are applied to these pyruvic kinases found in liver cells. So essentially, if we have high concentrations of ATP, the ATP creates a negative feedback loop that binds until Pyruvate kinase and diminishes its activity, inhibits its activity in the same way that ATP inhibits the phosphor fructokinase. Now, because Pyruvate also forms, let's say, building blocks such as amino acids.