右图为溶酶体b(一类含多种水解酶、具有单层膜的囊状细胞器)形成过

右图为溶酶体b(一类含多种水解酶、具有单层膜的囊状细胞器)形成过程和发挥作用过程的示意图。下列描述不正确的是:              (    )

A. 溶酶体对线粒体等衰老细胞器进行了“消化”

B. a、b、c、d 在膜结构上存在着直接联系

C. f过程反映了生物膜具有一定的流动性

D. 图中的膜结构主要由磷脂、蛋白质和少量糖类组成

答案


解析:

考查生物膜系统之间的相互关系,以及生物膜的结构和功能,属于考纲中对信息的处理、比较层次。由图中可以看出溶酶体可以对衰老的细胞器进行“消化”,各种膜的“运动”是以其流动性为基础的,但是各种膜之间的联系有直接的也有间接的,所以B错误。

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