opyright@ The Me Graw-Hill Companies, Inc. Permission required for reproduction or display. Extracellular fluid -NH2 Transmembrane nonpolar segment 0= Phospholipid bilayer o90 0=O 00=05 Intracellular fluid Schematic cartoon of a transmembrane protein
Circles represent amino acids in the linear sequence of the protein Schematic cartoon of a transmembrane protein The amino acids along the membrane section are likely to have non -polar side chains
Structure of cell membrane Fluid Mosaic Model(Singer Nicholson, 1972) Proteins Carbohydrate Lipids 6
Structure of cell membrane: Fluid Mosaic Model (Singer & Nicholson, 1972)
Copyright o The McGraw-Hill Companies, Inc. Permission required for reproduction or display Phospholipid bilayer Protein secco Drawing of the fluid-mosaic model of membranes, showing the phospholipid bilayer and imbedded proteins
Drawing of the fluid-mosaic model of membranes, showing the phospholipid bilayer and imbedded proteins
Composition of cell membrane 口 Lipids脂类 口 Proteins蛋白质 口 Carbohydrates糖类
Composition of cell membrane: ❑Lipids 脂类 ❑Proteins 蛋白质 ❑Carbohydrates 糖类