1、LOWTransport Passive Simple diffusionOsmosisActivetransport5.1 Passive transportActive transport高高低低Hypotonic低渗低渗Hypertonic高渗高渗isotonichypotonichypertonic等渗等渗Na+glucoseMembrane Trans.Protein A Carrier protein B Channel protein Carrier protein change shape let material transportChannelTypes of channe
2、l protein or ion channel Brief summary of passive transport +Charged particle cloaked with water molecules,can not get throughNa+Cl-K+H+Large molecules,also cloaked with water molecules,can not get throughNucleotidesAmino acidsSugarsThree ways of driving active transport.Active transportcat.md.us/co
3、urses/bio141/lecguide/unit1/eustruct/sppump.htmlQuestion:Compare with glucose transport by facilitated transport and active transport?Aniport Endocytic vesicle forming mechanism 大部分回到质膜重新利用大部分回到质膜重新利用少数进入溶酶体，受体下降调节少数进入溶酶体，受体下降调节 (receptor down regulation)少数运输到质膜不同区域少数运输到质膜不同区域6.转胞吞作用：受体和配体不作任何处理，转胞吞作用：受体和配体不作任何处理，内吞物从极性细胞一侧转到相反的方向。内吞物从极性细胞一侧转到相反的方向。母乳喂养之所以可以给宝宝抗体正是转胞母乳喂养之所以可以给宝宝抗体正是转胞吞作用原理实现的。吞作用原理实现的。Need microfilament and bind proteinSpecial cells have this function
