An amphipathic molecule is a molecule that contains both polar and nonpolar regions. As the answer above said amphipathic molecules have two ends. A Hydrophilic end or a polar end, and a hydrophobic end or a non-polar end. Amphipathic molecules are extremely important in the human body. because they function as transporters of hydrophobic material in the hydrophilic environment of the body. A simple example is that lipids (fat) can not circulate the body along with blood unless it is bonded to an amphipathis molecule or else lipids will not be able to move in the vessels and will make obstructions.