The Biochemistry of Anaerobiosis
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چکیده
To live anaerobically an organism must generate its energy and synthesize its substance without recourse to molecular 02. Thus any discussion of the biochemistry of anaerobiosis must centre on what alternatives there are to aerobic respiration and oxygenic photosynthesis as means of biological energy conservation, and to what extent an anaerobe is constrained by being denied the facility of exploiting molecular O2 as a substrate in biosynthetic, catabolic or detoxification reactions. The discussion will further be coloured by our knowledge that in the course of evolution anaerobiosis predated aerobiosis, so that in the contemporary aerobe all of its peculiarly aerobic processes appear to be grafted on to the basic stock of anaerobic cellular metabolism (Wald, 1964).
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