上游充通大兽 A Membrane Lipid Is an Amphipathic Molecule SHANGHAI JIAO TONG UNIVERSITY All the membrane lipids are amphipathic molecules(双亲性分子). 所有膜质类都是双亲性分子，具有表面活性剂性质。 They contains both a hydrophilic(亲水的)and a hydrophobic(疏水的) moiety.膜脂结构都包含亲水区和疏水区。 The two hydrophobic fatty acid chains are approximately parallel to each other,whereas the hydrophilic phosphorylcholine moiety points in the opposite direction. Phosphoglyeride Sphingomyelin Shorten depiction Arche liid Figure 12.8 Representations of membrane lipids.A Membrane Lipid Is an Amphipathic Molecule Figure 12.8 Representations of membrane lipids. All the membrane lipids are amphipathic molecules (双亲性分子). 所有膜质类都是双亲性分子，具有表面活性剂性质。 They contains both a hydrophilic (亲水的) and a hydrophobic (疏水的) moiety. 膜脂结构都包含亲水区和疏水区。 The two hydrophobic fatty acid chains are approximately parallel to each other, whereas the hydrophilic phosphorylcholine moiety points in the opposite direction