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Lecture 6 chemotrophy variations

Lecture 6 chemotrophy variations - It is absolutely...

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It is absolutely essential to be comfortable with this table.
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What cellular components are essential for respiration? What environmental substrates are essential for respiration?
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For a respiring organotroph, carbon compounds are a source of high-energy electrons. e- from carbon can be given to e- carriers in different ways: Glycolysis Entner-Doudoroff Pathway Pentose Phosphate Pathway Beta-oxidation of fatty acids Krebs cycle others--e.g. aromatic degradation
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Glycolysis oxidizes hexoses to get high-energy electrons to feed into an electron transport chain, or can be part of fermentation.
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The last half of glycolysis is nearly universal; almost all organisms have some variation on that theme.
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+ NADH
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the Pentose Phosphate Pathway oxidizes glucose to produce NADPH and pentoses. (Though it can supply respiration, it is mainly for rearranging sugars and anabolic processes.)
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Three pentoses can be rearranged to produce two hexoses and
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