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.
Lana is suffering from bulimia, or Bulimia nervosa.
Explanation:
Bulimia nervosa refers to an eating ailment, which is featured by binge eating succeeded by purging. Consuming a bigger quantity of food in shorter time duration is considered as binge eating, and the attempts to get rid of the food eaten is known as purging. The act of purging can be done by taking laxatives or by vomiting. Bulimia nervosa is a mental health condition.
Oxygen is a small molecule and it's non polar, so it easily passes through a cell membrane. Carbon dioxide, the byproduct of cell respiration, is small enough to readily diffuse out of a cell. Small uncharged lipid molecules can pass through the lipid innards of the membrane.