And this is because glycolysis is a very extragonic process. It releases an amount that is equal to 96.2 kilojoules per mole of free energy. So we know that in glycolysis, the overall step involves so we have glucose, two AGP, two Pi, so orthophosphates two NAD. Plus we have ten steps that take place that essentially make this process an irreversible process. And we form two Pyruvate molecules, two ATP molecules, two NADH molecules, two H plus and two water molecules. Now, we know that glycolysis takes place in ten steps and actually seven of these steps are not very exergonic.