NATS 1610 Lecture Notes - Lecture 21: Carboxylic Acid, Triglyceride, Hydroxy Group
25 Nov 2015
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Nats 1610 lecture #21 molecules of life. Composed of several types of basic building blocks. Are non-polar, dissolve in non- polar substances. Phospholipids are major component of cell membrane. Fats- glycerol with one, two or three fatty acids attached. Triglycerides most common fat in human body (has richest source of energy) Gycerol- 3 carbon skeleton and 3 hydroxyl groups. Fatty acids- has carboxyl group (hydrocarbon chain often 16-18 carbons). They don"t have oxygen in long hydrocarbon chain, and are hydrophobic. Made up by carbon, only single bonds between c-c, so that all carbon atoms has maximum h atoms they can hold. Have at least one double or triple bon (pi bond) c=c, due to this they have less h atoms than saturated fatty acids. Most plant and fish fats and oils (liquid at room temp) By hydrogenation can be converted into saturated fatty acids. Adding hydrogen atoms to double or triple bonds of molecule.
