k Active transport Sodium-potassium pump its effects Other pumps: calcium pump, proton pump k Secondary active transport Membrane protein: pump+transporter Forms: symport antiport ck Exocytosis endocytosis Exocytosis: cell secretion Endocytosis: phagocytosis Receptor mediated endocytosis
* Active transport Sodium-potassium pump & its effects Other pumps: calcium pump, proton pump * Secondary active transport Membrane protein: pump+transporter Forms: symport & antiport * Exocytosis & endocytosis Exocytosis: cell secretion Endocytosis: phagocytosis Receptor mediated endocytosis
3 Na 膜外 2K+ ATP酶 膜内 3 Na 2 K ATP ADP+ Pi Sodium-potassium pump
Sodium-potassium pump
a+葡萄糖 氨基酸 紧密连接 0Q000DA00 K+ K 钠泵 D钠泵 载体 载体 葡萄糖 氨基酸 Secondary active transport
Secondary active transport
线粒体 粗面内质网 吞噬体溶酶体 高尔基复合体 D 吞噬体 溶酶体 e●细菌 Exocytosis endocytosis
Exocytosis & endocytosis
再循环囊泡￠ 吞饮小泡 胞内体 Receptor mediated 次级溶酶体 6 endocytosis
Receptor mediated endocytosis