BIOL 1201 Lecture Notes - Lecture 4: Carboxylic Acid, Hydroxy Group, Amine
12 Dec 2014
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Composition largely c, o,h,n but especially c: functional groups: attached to carbon backbone. *for a molecule to go into a solution: have to know the polar:nonpolar ratio. There are four major classes of organic molecules: carbohydrates, lipids, proteins, nucleic acids. C=o bonds (carbonyl bond) when put into water diagram turns isnto a rin oc;ygen in one corner. Most common: starch- storage (plants) glycogen- storage (animals) Dehydration synthesis- removes water molecules when forming a new bond. *reverse reaction* hydrolysis- adds water molecules thus breaking a bond. Compounds containing c,h,o, p, and n (less o and more h than. Types: fatty acids, trigylcerides (fats, phospholipids, steriods. Fatty acids: hydrocarbon chain with carboxyl group on one end. Saturated: max number of hydrogens, the chain is single bond. Unsaturated: more carbon double bonded together (c=c) so less hydrogen. Trigylcerides (fats): glycerol moluecules with 3 fatty acid chains attached. Phospholipids: glycerol moluces with 2 fatty acid chains and a.
