And in the example that I gave before, the target cell that the fatty acids are carried to are the skeleton muscle cells that help us carry out the different types of voluntary motions. Now, what happens to the glycerol? Well, the glycerol, as I said earlier, moves into liver cells. And once inside the cytoplasm of liver cells. An enzyme known as glycerol kinase traps that glycerol inside that liver cell and it traps it by giving it a negative charge. So it actually takes off a phosphoryl group from an ATP, places it onto the oxygen of glycerol, forms an ATP, as well as the l isomer of glycerol three phosphate.