泽充王大学 上 Shanghai Jiao Tong University 3.5.1 Chemical Composition of Membranes 圈Phospholipid bilayer-磷酯双分子层 ·8 nm thick Occurs in Bacteria and Eukarya,not in Archeae. 0 Structure:Glycerol backbone attached with fatty acids and phosphate-containing groups by ester linkage结构：甘油骨架，以酯键连接脂肪酸与磷酸， 11 H2C-O- R 0 HC-O-C-R 0 H2C-O- Light area= Dark area glycerol portion of region of fatty acids a phospholipid (hydrophilic) (hydrophobic)Shanghai Jiao Tong University 3.5.1 Chemical Composition of Membranes Phospholipid bilayer-磷酯双分子层 • 8nm thick • Occurs in Bacteria and Eukarya, not in Archeae. • Structure: Glycerol backbone attached with fatty acids and phosphate-containing groups by ester linkage 结构: 甘油骨架, 以酯键连接脂肪酸与磷酸