So let's discuss each one of these processes briefly and then let's summarize our results into the following table that basically describes how many ATP molecules are synthesized by each one of these individual processes. And let's begin with the process of glycolysis. Now, glycolysis is the breakdown of a glucose molecule into two ATP molecules, into two NADH molecules and two Pyruvate molecules. Now, actually glycolysis produces a total of four ATP molecules. But because it uses up two ATP molecules, the net result is four minus two or two ATP molecules per single glucose molecule. Now, glycolysis takes place in the fluid portion of the cytoplasm of our cell and this is known as the cytosol of our cell.