摘要:4.如下图表示各种膜的组成成分含量: 图示不能说明的是( ) A.构成细胞膜的主要成分是蛋白质和脂质 B.膜中的脂质和蛋白质含量的变化与膜的功能有关 C.膜的功能越简单.所含蛋白质的数量越少 D.蛋白质在进行细胞间的信息交流中具有重要作用 [解析] 由柱状图数据可知.在各种膜中.脂质和蛋白质的含量相对较高.因此构成膜的主要成分是脂质和蛋白质.蛋白质是生命活动的主要承担者.功能越复杂的膜中.蛋白质的种类和数量越多.如线粒体内膜和叶绿体片层膜.反之就越少.蛋白质与细胞间的信息交流作用有关.但从图中所给数据不能确定. [答案] D

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下图表示动物、植物细胞二合一显微结构模式图。根据图回答(符号与文字全对才给分):

 

(1)若某细胞同时含有AB两图中各种细胞结构,则为       细胞;

(2)提供细胞能量的“动力车间”为[    ]         ;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

(3)结构5为                  ,在植物细胞有丝分裂时,与细胞壁的形成有关;

(4)细胞内有双层膜的结构但又不属于细胞器

的是              

(5)如果B图为大蒜根细胞,则应该没有[    ]      ; 

(6)与动物细胞有丝分裂有关的结构是[    ]               

(7)12所示的结构的化学组成为                 ,它与染色体的关系为         

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下图表示动物、植物细胞二合一显微结构模式图。根据图回答(符号与文字全对才给分):

(1)若某细胞同时含有AB两图中各种细胞结构,则为      细胞;
(2)提供细胞能量的“动力车间”为[    ]        ;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
(3)结构5为                 ,在植物细胞有丝分裂时,与细胞壁的形成有关;
(4)细胞内有双层膜的结构但又不属于细胞器
的是              
(5)如果B图为大蒜根细胞,则应该没有[    ]     ; 
(6)与动物细胞有丝分裂有关的结构是[    ]              
(7)12所示的结构的化学组成为               ,它与染色体的关系为         

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