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2-生命的起源與多樣性-文庫吧資料

2024-08-17 08:44本頁面
  

【正文】 自發(fā)連連成像類蛋白質(zhì)和核酸那樣的聚合物。2. The Emergence of life: Organic and Biological Molecules on a Primitive Planet:原始行星上的有機(jī)和生物分子Evidence for prelife stages of chemical organization es from laboratory experiments that try to duplicate the physical environment and chemical resources of the early earth. These experiments, including the pioneering work of Miller and Urey, have successfully produced organic monomers including amino acids, simple sugars, and nucleic acid bases. The probable next step toward life was the spontaneous linking of such monomers into polymers such as proteinoids and nuclei acids. Current research suggests that likely sites for this polymerization were clay or rock surfaces.生命出現(xiàn)之前時(shí)期的化學(xué)構(gòu)成的證據(jù)來自模仿早期地球的物理環(huán)境和化學(xué)資源的實(shí)驗(yàn)。 地球上可能使生命出現(xiàn)的一些基本物理特征包括行星的尺寸,溫度,組成和距太陽的距離。大約在50億年以前,我們的太陽系的中心的太陽是由一團(tuán)原始物質(zhì)凝結(jié)而成的; 行星,包括地球,大約在46億年以前凝結(jié)。 the planets, including the earth, condensed about billion years ago. The earth is posed of a number of layers: a solid crust, a semisolid mantle, and a largely molten (liquid) core that has a solid center. Basic physical features of Earth that may have made the emergence of life possible include the planet39。Part II:GlossaryBig Bang 大爆炸crust 地殼mantle 地幔core 核心proteinoid 類蛋白[質(zhì)]coacervate 團(tuán)聚體,凝聚層liposome 脂質(zhì)體o
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