运载分子高通道蛋白膜脂载体蛋白7O0U电化学势梯度1F能量易化扩散简单扩散主动运输低被动运输细胞膜上两种离子运载蛋白
运载分子 通道蛋白 载体蛋白 膜脂 简单扩散 易化扩散 高 主动运输 低 被动运输 能量 电化学势梯度 细胞膜上两种离子运载蛋白
Types Membrane Transport Mechanismsmoleculetobetransportedcarrierproteinschannelextracellularproteinspaceelectrochemicalgradient00lipidbilayercytoplasmenergysimplecarrier-mediatedchannel-mediateddiffusiontransporttransportpassivetransportactivetransport(facilitateddiffusion)iumkhoLLadiges&van
from Knox, Ladiges & Evans molecule to be transported channel protein carrier proteins extracellular space lipid bilayer cytoplasm simple diffusion channel-mediated transport carrier-mediated transport energy electrochemical gradient passive transport (facilitated diffusion) active transport Types Membrane Transport Mechanisms
质膜为溶质+丁鸡甲具扩散通过类脂与载体相连通过含水孔隙离子跨膜的主动（“上坡”）和被动（“下坡”）运输图示
离子跨膜的主动（“上坡”）和被动（“下坡”）运输图示 扩散 通过类脂 与载体相连 通过含水孔隙 质膜 上坡 下坡 自由能变化 + - 0 （ ）为溶质
离子通道IonchannelsExternaK+ channelsIntemN and C terminal domains are locatedS4Segmon the cytoplasmic sideContains 6 membrane-spanningsegments(a)Copynghe1999-JohnW沈其荣
离子通道 Ion channels K+ channels N and C terminal domains are located on the cytoplasmic side Contains 6 membrane-spanning segments 沈其荣
OutsideLipidbilayerN-GlycosylationsiteCaseinkinaseIProteinkinaseCphosphorylation sitephosphorylationsiteCytoplasmStructure of transporter
Structure of transporter