【单选题】【消耗次数：1】
大多数药物在体内跨膜转运的方式是
①
主动转运
②
易化扩散
③
简单扩散
④
膜孔滤过
⑤
胞饮
参考答案：
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相关题目
【单选题】
关于药物通过生物膜转运的特点的正确表述是（）。
①
促进扩散的转运速率低于被动扩散
②
被动扩散会出现饱和现象
③
被动扩散的物质可由高浓度向低浓度转运，转运的速度为一级速度
④
主动转运借助于载体运行，不需消耗能量
⑤
胞饮作用对于蛋白质和多肽的吸收不是十分重要
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