And if step three stops taking place then we're not going to produce the ATP molecules and that makes sense because if we're not exercising if we have rest we don't want to produce ATP molecules and so that turns off the process of glycolysis. But what happens if the energy charge value is low? So in the case of us exercising what happens is the ratio of ATP to Amp decreases and what that means is we want to produce those ATP molecules because we want to be able to contract our muscles quickly and effectively. And so what happens is the Amp goes on and binds onto the regulatory side to phosphor fructoclinates and that stimulates the activity of the enzyme to catalyze this process increase the rate of the process and increase the rate at which the ATP molecules are also being produced by glycolysis. But the question is in the process of glycolysis we only find ATP molecules and ADP molecules. Amp is not found in glycolysis.