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. Now, we also sometimes call it the crop cycle or the TCA cycle, where TCA stands for tricarboxylic acid because as we'll see in just a moment, tricarboxylic acid TCA is actually an intermediate of the citric acid cycle. Now, every time one cycle of the citric acid cycle actually takes place, what happens is two carbon dioxide molecules are produced, a GTP molecule is produced and eight electrons are collected via the oxidation reduction reactions. Now, six of these electrons are picked up by three of these NAD plus molecules.