Now in this video, we'll talk about the phases of fatty acid oxidation. Fatty acid oxidation takes place in three successive phases. In phase A, we have what's called activation. Here, it prepares the fatty acid for oxidation by converting it into a fatty acyl CoA. To do this, we have to consume ATP. In phase B, we have what's called transport. Here, the fatty acyl CoA moves from the cytosol to the mitochondrial matrix via the carnitine shuttle. And in phase C, we have oxidation. Here the beta oxidation pathway breaks the fatty acid chain into multiple Acetyl CoA. In addition to this, it's going to produce our high energy molecules in the form of FADH₂ as well as NADH.

If we take a look at this overview, we start out with our fatty acid. By consuming ATP, we're able to convert it into our fatty acyl CoA. It then goes into our transport phase where it's transformed into our fatty acyl carnitine, so CAR here. And then finally, we have oxidation, where it's going to be oxidized into multiple Acetyl CoA molecules and in addition, our high energy molecules of FADH₂ and NADH. So, this image gives us a good overview of what fatty acid oxidation entails.