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1.关于细胞膜结构和功能的叙述,错误的是()A月旨质和蛋白质是组成细胞膜的主要物质B.当细胞衰老时,其细胞膜的通透性会发生改变C.甘油是极性分子,所以不能以自由扩散的方式通过细胞膜D.细胞产生的激素与靶细胞膜上相应受体的结合可实现细胞间的信息传递【答案】C。【解析】细胞膜等生物膜的主要成分均是脂质和蛋白质,A正确;细胞衰老特征之一是其细胞膜的通透性改
1. On the description of the structure and function of the cell membrane, the error is (A) and the protein is the main material constituting the cell membrane B. When the cell senescence, the permeability of the cell membrane will change C. Glycerol is a polar molecule , So it can not be freely diffused through the cell membrane D. Cellular hormones produced by the target cell membrane receptors and the corresponding combination of information can be achieved between cells 【Answer】 C. [Analysis] cell membranes and other biofilms are the main components of lipid and protein, A correct; one of the characteristics of cellular aging is the permeability of the cell membrane change