A triglyceride consists of three molecules of fatty acid combined with a molecule of the alcohol glycerol.
What are the components of triglycerides?
Triglycerides are tri-esters consisting of a glycerol bound to three fatty acid molecules. Alcohols have a hydroxyl (HO–) group. Organic acids have a carboxyl (–COOH) group. Alcohols and organic acids join to form esters.
Which type of alcohol is present in triacylglycerol?
Triglycerides are esters of fatty acids and a trifunctional alcohol – glycerol (IUPAC name is 1,2,3-propantriol).
What alcohol is found in a triglyceride quizlet?
The alcohol is glycerol. Two of its three hydroxyl groups are esterified by fatty acids.
Are triglycerides soluble in alcohol?
Triglycerides function as a long-term storage form of energy in the human bods. Because of the long carbon chains, triglycerides are nearly nonpolar molecules and thus do not dissolve readily in polar solvents such as water. Instead, oils and fats are soluble in nonpolar organic solvents such as hexane and ethers.
What are the two primary components of triglycerides?
The two main components of a triglyceride molecule are glycerol and fatty acids.
What is the primary role of triglycerides?
Triglycerides provide your body with energy, but their main function is to store energy for later use. The food you eat contains calories in the form of carbohydrates, protein and fat. … Fat cells hold the triglyceride molecules until your body needs energy, such as between meals.
Why is it called saponification?
The reaction is called a saponification from the Latin sapo which means soap. The name comes from the fact that soap used to be made by the ester hydrolysis of fats. Due to the basic conditions a carboxylate ion is made rather than a carboxylic acid.
What is another name for triacylglycerol?
Triacylglycerols are the form in which fat energy is stored in adipose tissue. Triacylglycerols are sometimes referred to as triglycerides.
How is glucose converted to triglycerides?
When glucose levels are plentiful, the excess acetyl CoA generated by glycolysis can be converted into fatty acids, triglycerides, cholesterol, steroids, and bile salts.
Where in the body are leukotrienes most commonly found?
The lipoxygenase products (leukotrienes) have been demonstrated in many mammalian tissues including humans. They are widely distributed in the lungs, gut, uterus, kidneys, skin, heart and the liver.
What is the backbone of triglycerides quizlet?
A diverse group of organic substances that are insoluble in water, lipids include triglycerides, phospholipids, and sterols. Long chains of carbon atoms bound to each other as well as to hydrogen atoms. An alcohol composed of three carbon atoms; it is the backbone of a triglyceride molecule.
What is a triglyceride composed of quizlet?
Triglycerides are composed when one glycerol chain and three fatty acid chains are covalently bonded through dehydration synthesis by removing water to combine the molecules. The fatty acid is composed of 4-24 carbon atoms linked to a carboxyl group (-COOH) at one end and methyl (-CH3) at the other end.
What are the four parts of a triglyceride?
Triglycerides are the predominant component of most food fats and oils. The minor components include mono- and diglycerides, free fatty acids, phosphatides, sterols, fatty alcohols, fat-soluble vitamins, and other substances. A triglyceride is composed of glycerol and three fatty acids.
How a triglyceride is formed?
A triglyceride is formed when the three hydroxyls (OH-) groups of a single glycerol molecule react with the carboxyl group (COOH-) of three fatty acids by forming ester bonds.
How are triglycerides removed from the body?
Fatty acids are eliminated by oxidation within the cell or by secretion into the plasma within triglyceride-rich very low density lipoproteins. Notwithstanding high fluxes through these pathways, under normal circumstances the liver stores only small amounts of fatty acids as triglycerides.