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.
Lung nodules can be either benign (non-cancerous) or malignant (cancer). The most common causes of benign nodules include granulomas (clumps of inflamed tissue) and hamartomas (benign lung tumors).The most common cause of malignant lung nodules include lung cancer, or cancer from other regions of the body that has spread to the lungs (metastatic cancer).he most common causes of benign nodules include granulomas (clumps of inflamed tissue) and hamartomas (benign lung tumors). The most common cause of malignant lung nodules include lung cancer, or cancer from other regions of the body that has spread to the lungs (metastatic cancer).