But before the cells of our body can actually use the potential energy that is stored in the chemical bonds of triglyceride molecules, the triglyceride molecules have to undergo three important processes, three important stages. Now, in the previous lecture, we discussed stage one, and we said that in stage one, the adipose cells that store the triglycerides actually have to release those fatty acids. So they essentially break down and mobilize the triglycerides into free floating fatty acids and glycerol molecules and then release the fatty acids into the blood plasma of our body. And once inside the blood plasma, a carrier protein molecule known as serum albumin picks up these fatty acids and then brings them to target cells. So let's suppose we have some type of target cell, let's say a muscle cell, and this is a cell membrane of that target cell. So in stage two, once the fatty acids are brought into the cytoplasm of that target cell, that cell needs to activate the fatty acids and then transport the fatty acids into the matrix of the mitochondria.