上游充通大学 SHANGHAI JIAO TONG UNIVERSITY 第一节人体细胞Ce11s ●细胞结构Cell structure 细胞膜Cell membrane Proteins and Lipids in a Membrane Phospholipid .The outer boundary of the cell bilayer Extracellular fluid Responsible for regulating whether substances enter or Proteins leave the cell Cytosol Semi-permeable Barrier for material to move into and out of the cell(屏障) 生物膜电镜照片…· 生物功能：激素作用、酶促反应、细胞识别、电子传递等！第一节 人体细胞 Cells z细胞结构 Cell structure 细胞膜 Cell membrane •The outer boundary of the cell •Responsible for regulating whether substances enter or leave the cell •Semi-permeable •Barrier for material to move into and out of the cell(屏障) 生物膜电镜照片 生物功能：激素作用、酶促反应、细胞识别、电子传递等！