A general term for fats and oils.
A family of compounds that are soluble in organic solvents but not in water.
Fatty acids, including natural oils, waxes, and steroids.
A general term for fats and oils (chemically triacylglycerols), waxes, phospholipids, steroids, and terpenes. Their common property is insolubility in water and solubility in hydrocarbons, chloroform, and alcohols.
Fats; organic chemicals made up of carbon, oxygen and hydrogen that are insoluble in water.
Water-insoluble (fat) biomolecules that are highly soluble in organic solvents such as chloroform. Lipids serve as fuel molecules, highly concentrated energy stores, “signal” molecules, and components of membranes. Membrane lipids are relatively small molecules that have both a hydrophilic (i.e., “water loving”) and a hydrophobic (i.e., “water hating”) moiety. These (membrane) lipids spontaneously form closed bimolecular sheets in aqueous media (water) which are barriers to the free movement (flow) of polar molecules.
A substance soluble in non-polar solvents; insoluble in water.
The technical term for fats, waxes, and fatty compounds.
An organic compound which is insoluble in water, e.g. a fat, oil or wax.
A fat or fatlike substance.
Any of a group of greasy organic compounds, including fatty acids, waxes, phospholipids, and steroids. Lipids are stored in the body and serve as energy reserves.
A broad category of substances in the body that includes fats and fatlike compounds such as sterols (including cholesterol). Although not all lipids are fats, the two terms are often used interchangeably.
One of a group of naturally occurring compounds that are soluble in such solvents as chloroform or alcohol but insoluble in water. Lipids are important dietary constituents, not only because of their high energy value but also because certain vitamins and essential fatty acids are associated with them. The group includes fats, steroids, phospholipids, and glycolipids.
A substance which is insoluble in water, but soluble in fat solvents such as alcohol and ether. The main lipid groups are the triglycerides, phospholipids, and glycolipids. They play an important role in nutrition, health (particularly in the functioning of the cell membranes, and the immune response), and disease (notably cardiovascular disease). There is a strong correlation between the concentration of cholesterol in the blood (transported as lipoproteins) and the risk of developing atheroma and coronary heart disease. Lipoproteins are classified by their density and mobility, the chief groups being low-density (LDL), very lowdensity (VLDL), and high-density (HDL). High SERUM concentrations of LDL increase the risk of cardiovascular disease, while HDL is thought to protect the vessel wall by removing cholesterol, and has an inverse relationship to risk. The various serum lipid abnormalities have been classified into five groups, according to the cause and the particular raised lipoprotein. Most important are type II (increased LDL, genetically determined) and type IV (increased VLDL, associated with obesity, diabetes, and excess alcohol). Various lipid-lowering drugs are available, but any drug treatment must be combined with a strict diet, reduction of blood pressure, and cessation of smoking.
Fats or fatlike substances characterized by their insolubility in water or solubility in fat.
Any of the various fats or fat-like substances in plant or animal tissues that serve as an energy reserve in the body.
This refers to a wide-ranging assemblage of organic compounds found naturally, encompassing lipids such as fats and waxes, sterols, and phospholipids.
Lipids are a group of organic compounds characterized by their greasy nature and inability to dissolve in water but solubility in alcohol. Fats, waxes, and oils serve as illustrations of lipids.
Lipids encompass a broad category of fats and oils. This classification involves triglycerides (basic fats), phospholipids (essential components of cell membranes and nerve tissue), as well as sterols like cholesterol.