Classification of lipids - LinkedIn SlideShare.
Lipids are biological macromolecules made up of carbon, hydrogen and oxygen atoms. Lipids are also made up of a large group of heterogeneous compounds such as fats, oils, waxes, phospholipids and the derived lipids such as steroids. All these compounds are insoluble in water, but they dissolve in the nonpolar solvents such as benzene and carbon tetrachloride.
Lipids are made up of the elements carbon, hydrogen and oxygen but in different proportions to carbohydrates. The most common type of lipid is the triglyceride. Lipids can exist as fats, oils and waxes. Fats and oils are very similar in structure (triglycerides). At room temperature, fats are solids and oils are liquids. Fats are of animal origin, while oils tend to be found in plants.
Esterified sierols may also be considered as the lipid classification of waxes. However, the terms steroid and sterol are often used synonymously. Examples are— cholesterol and allied compounds e.g., hormones of adrenal cortex, testis and ovary. Un-esterified sterols are also included in lipids because they are soluble in typical lipid solvents.
Complex Glycerolipids. These web pages describe the structures, occurrence, basic biochemistry and functions of the complex (polar) glycerolipids, including both the phospholipids and glycosyldiacylglycerols (galactolipids). In all living organisms, glycerophospholipids are key components of the membranes, but they have a variety of other vital functions as cellular messengers, enzyme.
Lipids make up a group of compounds including fats, oils, steroids and waxes found in living organisms. Lipids serve many important biological roles. They provide cell membrane structure and resilience, insulation, energy storage, hormones and protective barriers. They also play a role in diseases.
Lipids include fats, oils, waxes, phospholipids, and steroids. Fats and Oils. A fat molecule consists of two main components—glycerol and fatty acids. Glycerol is an organic compound (alcohol) with three carbons, five hydrogens, and three hydroxyl (OH) groups. Fatty acids have a long chain of hydrocarbons to which a carboxyl group is attached, hence the name “fatty acid.” The number of.
How useful are lipids? Like carbohydrates, they are used as an energy supply, but a given amount of lipid release more energy than the same amount of carbohydrate. Due to their insolubility in water and compact structure, lipids have long-term storage qualities. Adipose cells beneath our skin contain large quantities of fat which insulate us and help to maintain body temperature. Fat gives.