Indicate whether each of the following statements about triglycerides is true or
ID: 23226 • Letter: I
Question
Indicate whether each of the following statements about triglycerides is true or false. Indicate whether each of the following statements about triglycerides is true or false. A triacylglycerol is composed of 3 glycerol molecules joined to a fatty acid. The fatty acids of a triglyceride need not be identical, and often they are very different from one another. Glycerol is a three-carbon alcohol, in which each carbon bears a carboxyl group. A fatty acid consists of a hydrocarbon chain joined to a hydroxyl group. The hydrocarbon chains of fatty acids vary in length as well as in the number and location of double bonds between the carbon atoms. Fatty acids with one double bond in their hydrocarbon chain are called monounsaturated, while those with more than one double bond are called polyunsaturated. A saturated fatty acid has the maximum number of oxygen atoms bonded to its hydrocarbon chain. Fats containing unsaturated fatty acids have high melting points because their fatty acid chains bend at the double bonds, preventing them from packing closely together. Most plant fats contain saturated fatty acids and are therefore liquid at room temperature. Additional hydrogen atoms can be added to saturated fats, a process called hydrogenation. When unsaturated fats are partially hydrogenated industrially, this can produce trans fats which have been linked to elevated levels of low-density lipoprotein (LDL) "bad cholesterol" and lowered levels of high-density lipoprotein (HDL) "good cholesterol."Explanation / Answer
1.False : 3 fatty acids + 1 glycerol = 1 triglycerol
2.True
3.False :3 carbon are attached to hydroxyl group
4.False: Carboxyl group of fattya cid is joined with hydroxyl group of glycerol to form ester bond.
5.True
6.True
7.False
8.False
9.False
10.False
11.True