The lipids are a large and diverse group of naturally occurring organic compounds that are related by their solubility in nonpolar organic solvents (e.g. ether, chloroform, acetone & benzene) and general insolubility in water.hospholipids are the main constituents of cell membranes. They resemble the triglycerides in being ester or amide derivatives of glycerol or sphingosine with fatty acids and phosphoric acid.
What causes lung nodules? Quick Answer. According to the Seattle Cancer Care Alliance, lung, or pulmonary, nodules have numerous causes, including fungal or bacterial infection, sarcoidosis, lymphoma, lung cancer and cancers metastasized from other organs.
Quick Answer. Liver nodules, usually a sign of liver disease, can be caused by certain parasitic or viral infections, immune system abnormalities, cancer and genetic conditions, according to Mayo Clinic. Contributing factors include heavy alcohol or drug use, unprotected sex, obesity, diabetes and exposure to certain chemicals.