A fat molecule consists of two kinds of parts: a glycerol backbone and three fatty acid tails. Glycerol is a small organic molecule with three hydroxyl (OH) groups, while a fatty acid consists of a long hydrocarbon chain attached to a carboxyl group.
What is a single fat molecule?
Fat molecules are made up of four parts: a molecule of glycerol (on the right) and three molecules of fatty acids. The three fatty acids in a single fat molecule may be all alike (as shown here for tristearin) or they may be different. They may contain as few as 4 carbon atoms or as many as 24.
Which is an example of a fat molecule?
Examples of fats include butter, cream, vegetable shortening, and lard. Examples of pure compounds that are fats include triglycerides, phospholipids, and cholesterol.
How is a lipid molecule formed?
Triacylglycerols, commonly called triglycerides (known as lipids), are formed by combining glycerol with three fatty acid molecules.
What are fats chemistry?
In a fat molecule, the fatty acids are attached to each of the three carbons of the glycerol molecule with an ester bond through the oxygen atom. During the ester bond formation, three molecules are released. Since fats consist of three fatty acids and a glycerol, they are also called triacylglycerols or triglycerides.
What is fatty acid formula?
Fatty acids are organic compounds that have the general formula CH3(CH2)nCOOH, where n usually ranges from 2 to 28 and is always an even number. There are two types of fatty acids: saturated fatty acids and unsaturated fatty acids.
What are fat molecules?
A fat molecule is a type of lipid that consists of three fatty acid molecules connected to a 3 carbon glycerol backbone, as shown on the right. Since a fat molecule has 3 fatty acids connected to a glycerol molecule, they are also called trigylcerides.
What is a lipid molecule?
A lipid is any of various organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.
What is the structure of fat tissue?
Fat tissue contains fat cells, or adipocytes, which are specialized for storing molecules of fat. Fat molecules have a wide variety of structures and functions. In this Click & Learn, students learn about these different structures and how they relate to one another.
What elements make up the chemical makeup of fats?
The most important elements in the chemical makeup of fats are the fatty acids. The molecule of a fatty acid consists of a carboxyl group HO (O=)Cā connected to an unbranched alkyl group ā (CH 3H and three fatty acids.
How many fatty acids are in a triglyceride molecule?
Idealized representation of a molecule of a typical triglyceride, the main type of fat. Note the three fatty acid chains attached to the central glycerol portion of the molecule.
What are the different types of fatty acids in food?
Different foods contain different amounts of fat with different proportions of saturated and unsaturated fatty acids. Some animal products, like beef and dairy products made with whole or reduced fat milk like yogurt, ice cream, cheese and butter have mostly saturated fatty acids (and some have significant contents of dietary cholesterol).
