Which three of the following statements are true? The bilayer of a cellular membrane is primarily composed of amphipathic (amphiphilic) lipids. Forming an ordered network of water around hydrophobic molecules increases the entropy of water. Nonpolar molecules that have no polar groups (e.g. hydrocarbons) can readily form micelles. The tendency of hydrophobic molecules to aggregate in water is called the hydrophobic effect. Placing a hydrophobic molecule into water causes water molecules to orient themselves around it.