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【主干知识】1.细胞膜是选择透过性膜;2.生物膜的流动镶嵌模型的基本内容;3.物质跨膜运输方式的类型及其特点。【扩展梳理】1.半透膜与选择透过性膜的区别半透膜是指某些物质可以透过,而另一些物质不能透过的多孔性膜。能否通过半透膜往往取决于分
【Knowledge】 1. Cell membrane is the choice of transmembrane; 2. Biofilm flow mosaic model of the basic content; 3. Type of substance transmembrane transport and its characteristics. 【Extended combing】 1. The difference between the semipermeable membrane and the selection of the transmembrane membrane Semipermeable membrane refers to the porous membrane through which some substances can permeate while others can not permeate. The ability to pass semipermeable membranes often depends on the score