We'll see why again in just a moment. Now, this acetyl coenzyme a is a relatively large molecule and only a small portion of that molecule will actually be used in the next process. So acetyl coenzyme a looks like this. So we essentially have this component and then the remaining portion, which is a big portion. I'm not going to draw it on the board, but this is basically the portion that will go into this next process known as the citric acid cycle. So acetylco enzyme A donates a portion of itself to the next process which consists of a series of oxidation reduction reactions that we collectively known as the citric acid cycle.