Biological membranes and transport part I Dunging pei, Ph D 裴端卿 Tsinghua University Cell phone:1368301-7108 peixx003oumn eduBiological Membranes and Transport part II • Duanqing Pei, Ph.D. • 裴 端 卿 • Tsinghua University • Cell phone: 136-8301-7108 • peixx003@umn.edu