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“水通道蛋白”的有关高考题及分析

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摘要 人教版高中《生物·必修1.分子与细胞》第4章介绍了细胞的渗透吸水和失水,以及水的跨膜运输。水是如何进出细胞的?教材正文部分描述为自由扩散。而教材"科学前沿"栏目又提到"水通道蛋白",近两年的高考题也考查了水分子通过水通道蛋白进出细胞,很多学生对此感到迷惑。1自由扩散自由扩散是物质从高浓度一侧通过细胞膜向低浓度一侧的扩散,不需要载体也不消耗能量。
作者 高橼
机构地区 安徽省合肥八中
出处 《中学生物教学》 2015年第20期58-58,共1页 Teaching of Middle School Biology
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