Cell membranes are made of phospholipids because the lipids form an insoluble barrier. The lipids that are included are <span>fats and oil that do not dissolve in water. The insolubility of the lipid layer is caused by the non-polar characteristics of fats and oils</span>
Bulimia, which is defined as an emotional disorder involving distortion of body image and an obsessive desire to lose weight, in which bouts of extreme overeating are followed by depression and self-induced vomiting, purging, or fasting.