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人教版生物教材在科学前沿中介绍了通道蛋白的内容。围绕通道蛋白的信息类考题在近年高考中时有出现。下面对通道蛋白知识进行归纳探讨。通道蛋白参与的只是被动运输(协助扩散),在运输过程中并不与被运输的分子或离子相结合,也不会移动,并且是从高浓度向低浓度运输,所以运输时不消耗能量。通道蛋白转运速率与物质浓度成比例,且比载体蛋白介导的转运速度更快(1000倍以上)。通道蛋白的结构和功能
PEP textbooks introduce the contents of the channel proteins in the scientific frontiers. Information around the channel protein test questions in recent years have appeared in college entrance examination. The following channel protein knowledge induction. Channel proteins are involved in passive transport (to aid diffusion), are not combined with transported molecules or ions during transport, and do not move, and are transported from high concentrations to low concentrations, so transport does not consume energy. The channel protein transport rate is proportional to the concentration of the substance and is faster (1000-fold) faster than the carrier protein-mediated transport. Structure and function of channel proteins