lecture 8 autotrophy

lecture 8 autotrophy - Reactions and processes are...

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Reactions and processes are generally reversible: ATP ADP + Pi ADP + Pi ATP
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What is consumed and produced in glycolysis? What would be consumed and produced if you reversed glycolysis?
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The Calvin Cycle uses two unique enzymes, enzymes from glycolysis and the pentose phosphate pathway to reduce carbon dioxide to carbohydrate .
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Keq for RuBP + CO2 enediol is terrible. However, [enediol] is zero.
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The next phase of the Calvin cycle runs part of glycolysis in reverse
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Phospho-ribulokinase regenerates Ribulose 1,5-bisphosphate. The cycle begins again.
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Although a few Archaeans have a variety of Rubisco, the complete Calvin cycle is found only in the Bacteria. Rubisco is aerotolerant-- sort of.
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Carboxysomes have a fascinating protein membrane surrounding a paracrystalline mass of Rubisco
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Hydroxypropionate cycle Hydroxypropionate/Hydroxybutyrate cycle Dicarboxylate/Hydroxybutytrate cycle Acetyl CoA Acetyl CoA or Glyoxylate CO 2 or HCO 3 NADPH NADP+ ADP ATP
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The Krebs cycle can be run reductively , using almost all the same enzymes.
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This note was uploaded on 04/05/2011 for the course MIC 102 taught by Professor Appleman during the Fall '08 term at UC Davis.

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lecture 8 autotrophy - Reactions and processes are...

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