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.
What are thyroid nodules? Thyroid nodules are growths or lumps in the thyroid gland in the front of your neck. This gland controls how your body uses energy. Most thyroid nodules are not cancer and do not cause problems. Many don't even need treatment. Sometimes a thyroid nodule can cause problems. Sometimes a nodule can make too much thyroid hormone. When a nodule makes too much hormone, the rest of the gland is suppressed and doesn't work as hard as usual. Most thyroid nodules are not cancerous. But if tests show cancer, surgery will be done to remove the nodule. What causes thyroid nodules? It is not clear what causes thyroid nodules. But people who have been exposed to radiation have a greater chance of getting them. Thyroid nodules are more common as you age. Also, the nodules tend to run in families.