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Structure and Functions of Biomembranes

机译:生物膜的结构和功能

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Cell membrane systems provide two important functions: (1) they establish abiological barrier to the extracellular environment and (2) they compartmentalize specialized and sometimes toxic biological reactions within the cell. Althoughthe different cellular membrane systems have diverse biological functions, theydo share some common features. All membrane systems are composed of a lipidbilayer that contains a full complement of protein complexes that facilitate per-meability, transport, and signaling. The focus of this chapter will be to describerecent advances in our understanding of cell membrane structure and function,and to highlight the specialized roles of mitochondria and peroxisomes. Furthermore, we will discuss how structure and function of these membrane systems areaffected by oxidative stress.
机译:细胞膜系统提供两个重要功能:(1)建立对细胞外环境的生物屏障;(2)将细胞内特定的,有时是毒性的生物反应区分开。尽管不同的细胞膜系统具有多种生物学功能,但它们确实具有一些共同的特征。所有的膜系统都是由脂双层构成的,该脂双层包含蛋白质复合物的完整补体,从而促进了通透性,运输和信号传导。本章的重点将是描述我们对细胞膜结构和功能的了解的最新进展,并强调线粒体和过氧化物酶体的特殊作用。此外,我们将讨论这些膜系统的结构和功能如何受到氧化应激的影响。

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