Classes of Fatty Acids in Bacteria Class/Example Structure of example 0 l. Saturated: C-(CH2)12-CH3 tetradecanoic acid HO HH II.Unsaturated: C-(CH2)6-C=C-(CH2)6-CH3 omega-7-cis hexadecanoic acid HO 0 CH2 III.Cyclopropane: cis-7,8-methylene C-(CH2)7-C-C-(CH2)5-CH3 hexadecanoic acid HO HH IV.Branched: 13-methyltetradecanoic acid HO -( HCHg 0 H V.Hydroxy: C-CH2-C-(CH2)10-CH3 3-hydroxytetradecanoic acid HO OH (a) 2012 Pearson Education.Inc