And so, ultimately, we transform the triglycerides into the individual, free floating fatty acids and the glycerol molecules. And once that takes place, these two molecules in their mobilized form, are now released into the bloodstream. Now, once inside the bloodstream, what happens next? Well, glycerol molecules contain one to three hydroxyl groups, and that makes them polar molecules. And because our blood plasma consists predominantly of water, that means glycerol will be soluble in the blood plasma, and so it will not actually require any type of protein carrier to transport it within the blood plasma. Now, glycerol molecules ultimately end up in liver cells, and we'll discuss exactly what happens to the glycerol molecules in just a moment.