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上充通大学 Shanghai Jiao Tong University Lecture 4-2 Nutrition,Laboratory Culture and Metabolism of Microorganisms 三 CHAPTER 4 in BROCK BIOLOGY OF MICROORGANISMS JIAO TONG UN Zhao Liping,Chen Feng School of Life Science and Biotechnology Shanghai Jiao Tong University http://micro.sjtu.edu.cn

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上充通大学 Shanghai Jiao Tong University IV.Major Catabolic Pathways, Electron Transport,and the Proton Motive Force HANGHAI JIAO TONG UNIVERSIT V

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上泽克通大学 Shanghai Jiao Tong University 4.8 Energy Conservation For chemotrophs,those organisms that use chemicals as electron donors in energy metabolism,two mechanisms for energy conservation are known,fermentation and respiration.化能营养型生物以化学物质为 电子供体，通过发酵或呼吸获取能量. Shanghai Jiao Tong University

Shanghai Jiao Tong University 4.8 Energy Conservation For chemotrophs, those organisms that use chemicals as electron donors in energy metabolism, two mechanisms for energy conservation are known, fermentation and respiration.化能营养型生物以化学物质为 电子供体,通过发酵或呼吸获取能量

上充通大学 Shanghai Jiao Tong University Differences between fermentation and respiration? CHANCHALIIAO TONG UNIVERSITY

Differences between fermentation and respiration?

上帝充通大学 Shanghai Jiao Tong University 1.In terms of redox reactions: In fermentation,the redox process occur in the absence of usable terminal electron acceptors.发酵中，氧化还原过程不需要外来的最 终电子受体 In respiration,molecular oxygen (or some other electron acceptor)is present as a terminal electron acceptor.呼吸中，以分子氧或 其它外来的电子受体为最终电子受体 Shanghai Jiao Tong University

Shanghai Jiao Tong University 1. In terms of redox reactions: In fermentation, the redox process occur in the absence of usable terminal electron acceptors.发酵中,氧化还原过程不需要外来的最 终电子受体 In respiration, molecular oxygen (or some other electron acceptor) is present as a terminal electron acceptor.呼吸中,以分子氧或 其它外来的电子受体为最终电子受体