So what I'd like to focus on in this lecture is stage two. So the activation of the fatty acids and the subsequent transport into the matrix of the mitochondria. So, as we go through the following text, let's use this diagram as our reference. So let's suppose the fatty acid makes its way into the cytoplasm of the target cell. What happens next? Well, the first thing that has to happen is a special type of enzyme found on the outer membrane of the mitochondria known as fatty acidicinase, or sometimes acyl coenzyme synthetase, has to actually activate the fatty acid.