But first, let's actually look at these fatty acids. Now, fatty acids contain this relatively long hydrocarbon chain, the R group, and that makes fatty acids insoluble in water. And so they will not be able to actually dissolve in our blood plasma. And unlike glycerol molecules, fatty acids will require a protein transported molecule. And this molecule is known as serum albumin. So serum albumin actually binds fatty acids in the blood plasma, and it carries those fatty acids to the target cell.