三、复合脂类 Phosphatidate O-P-O 矿复合脂类包括磷脂、 H2C-CH-CH2 糖脂、硫脂等。 0 0 C=0C=0 CH2 CH2 磷脂 CH2-0-C Saturated fatty acid (e.g.,palmitic acid) Glycerophospholipid (general structure) 2CH-0-C Unsaturated fatty acid (e.g.,oleic acid) 3CH2-0-P-0-X Head-group substituent三、复合脂类 磷脂  复合脂类包括磷脂、 糖脂、硫脂等