List 2 ways that fatty acids differ from glycerol. ?
1) fatty acids are long acids and glycerol is an alcohol, 2) Fatty acids are long chains of carbons (C16-C20) with a Carboxillic acid group at the end which can be made up to for a larger macromolecule called triglycerides. Glycerol is only a 3 carbon molecule with 3 OH groups. Its function in biology as the backbone to triglycerides http://www.elmhurst.edu/~chm/vchembook/5... http://en.wikipedia.org/wiki/Glycerol http://en.wikipedia.org/wiki/Fatty_acids
Fats are made of analcohol called__ and three __ __ chains. This is known as a __?
Fats are made of an alcohol called Glycerol and three fatty acid chains. This is known as a Triglyceride.
Is glycerol made of fatty acids?
It is not. Fatty acids generally refer to long-chain carboxylic acids (e.g. linoleic acid). These consist of a large hydrocarbon (-CHx) tail and the carboxylic acid (-COOH) group at the end. On the other hand, glycerol is a polyol, which is a carbon chain with several alcohol (-OH) groups attached - specifically it is named 1,2,3-propanetriol, as it has a 3-carbon backbone with one alcohol group attached to each carbon. The confusion probably stems from the fact that triglycerides (most often referred to as fats) are composed of a glycerol unit attached to three fatty acids through ester bonds.
Hydrolysis of fat to glycerol & fatty acid?
Sorry, but Mario is not quite correct. A fatty acid is a long chain of carbon atoms that has an acid group at the end. When 1, 2, or 3 of these hook up with a compound known as glycerol, it makes a fat (monoglyceride, diglyceride, or the more popular triglyceride). So, when the fat is hydrolyzed, or broken down, it results in the formation of the component parts, namely glycerol and fatty acids. This is as simple as one can make it without introducing a lot of organic chemistry. So, didn't use too much technical language. If you look up triglyceride you might see what the structure is with one glycerol and 3 fatty acids attached. It might be clearer to you then.
What is glycerol? Can we use glycerin instead of glycerol?
Glycerol.Glycerol or 1,2,3-propanetriol is the most important trihydric alcohol. It was formerly known as Glycerine. Glycerol is found in all natural fats and oils as glycerol esters of long-chain carboxylic acids.Manufacture. Glycerol is manufactured:(1) From Fats and Oils.Natural tits and fats are triesters of glycerol and long-chain carboxylic acids (mainly palmitic, stearic, and oleic acid). On hydrolysis with alkali, the fat and oils produce glycerol and the sails of the long-chain acids which are called soaps.In the above equation, R is 9 to 17 carbons. The hydrolysis of fats and oils is carried originally for soap manufacture, and glycerol is obtained as a by-product. This is still a commercial source of glycerol.Glycerol from Soap Manufacture.In soap manufacture, the fat is hydrolyzed by boiling with alkali solution. The carboxylic acids produced by hydrolysis react with the alkali to form solid soap while the glycerol is left in the solution. The soap is filtered out. The filtrate is called Spent Lye.Read More… Glycerol - Definition, Manufacture, Uses and Properties
Is glycerol a lipid, carbohydrate, or protein?
One reasonable definition of carbohydrates is “polyhydroxy aldehydes and ketones and their derivatives.”Gllyceraldehyde is considered to be the parent of the aldose family of carbohydrates, and glycerol could be considered a derivative of glyceraldehyde.I don’t see how anyone could call glycerol, with its three polar hydroxyl groups, a lipid. The defining structural motif of lipids is a hydrocarbon chain. Propane is more like a lipid than is glycerol.Clearly, the people who refer to glycerol as a lipid are memorizing words rather than understand chemistry; glycerol forms the backboneof glycerolipids via ester bonds.Many complex lipids are formed from the combination of hydrophobic and hydrophilic groups. An example is phosphatidyl serine, a combination of glycerol, two fatty acids, inorganic phosphate, and serine. Nobody calls inorganic phosphate or serine lipids because they are part of a lipid structure.
Triglycerides that are solid at room temperature are... and Triglycerides that are liquid at room temperature are called...?
Solid: "Fat"; Liquid" Oil".
How do triglycerides and phospholipids differ from each other?
Both are lipids, which means they are macro-molecules made from Carbon, Hydrogen, and Oxygen, with a larger portion made up of carbon and hydrogen. They both are non-polar, meaning they do not dissolve in water and other inorganic substances due to their lack of molecular polarity (slightly negative side and slightly positive side.)This is a triglyceride, made up of the alcohol glycerol with three fatty acid chains attached to it. Fatty acids are long chains of carbon and hydrogen bonded to each other. At the end, there is a carboxyl group (CO2H) that gives it its acidic propertyA phospholipid is like a triglyceride, but it has a phosphate group at the end, which is composed of a phosphorous molecule surrounded by four oxygen molecules. In addition, it only has two fatty acid tails.It is used to build cell membranes in layers of two. The hydrophilic heads are attracted to water and the hydrophobic tails point away from water.Mixed in among the cell membranes or walls are also groups of proteins.