As the next microbiology genius, you are given a rare chance of observing live ETC performed by S. marcescens on a fancy microscope! While the process is going on, you see that an electron passed from the Fe/S protein (Complex 1) to Quinone. What would quinol reduce next?
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FADH2 |
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Complex 2 |
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Cytochrome or Fe/S (Complex 3) |
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Sulfate |
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None of the above |
1. Half reaction with the most negative reduction potential.
There may be one or more correct answers.
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Glyoxylate Cycle |
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Quinone -> Quinol (a reduction reaction) |
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Cytochrome |
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Citric Acid Cycle |
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FAD -> FADH |
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Quinol -> Quinone (an oxidation reaction) |
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FMN (a flavoprotein found in Complex 1) -> FMNH2 |
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NAD+ -> NADH |
1. Which of the following reactions are catabolic reactions?
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Photosynthesis |
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Pentose Phosphate Pathway |
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Glycolysis |
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Fermentation |
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TCA Cycle |
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Glyoxylate Cycle |
1)I can say it will reduce FeS of Complex III, which is the correct answer. The electron shuttles from Quinol to FeS to Cyt. B to Cyt C1 to Cyt c.
1) lower reduction potential will have a tendency to lose electrons to the new species,
Cytochrome and quinol/quinone, glyoxylate cycle, FADH have a positive redox potential
Rest are having negative potential, with the most being for
TCA cycle in which has certain reactions with most negative potential like isocitrate to alpha ketogultarate and to succinate...
As the next microbiology genius, you are given a rare chance of observing live ETC performed...
Please help me figure these out, and if you could explain why you got the answer you did that would be great, because I have an exam tomorrow! Thanks in advance. 1. Anaplerotic reactions __________. A. produce oxaloacetate and malate to maintain constant levels of citric acid cycle intermediates B. produce biotin needed by pyruvate carboxylase C. recycle pantothenate used to make CoA D. produce pyruvate and citrate to maintain constant levels of citric acid cycle intermediates E. All of...