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44107a_Q3 - when it is a product of a TCA cycle reaction...

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Name ______________________________________ Signature _________________________________ BICH 441 February 7, 2007 Quiz 3 1 (8 pts). Starting with the structures of oxaloacetate and acetyl-CoA, draw the intermediates in the TCA cycle through the reaction catalyzed by succinyl-CoA synthetase. You do not need to show mechanisms or enzyme names; just show the structures in the correct order. (You do not need to draw the structutre of CoASH, but you should draw the structure of GTP
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Unformatted text preview: when it is a product of a TCA cycle reaction.) 2 (5 pts). Shown below is a representation of the structure of thiamine pyrophosphate (TPP), as well as an intermediate in the reaction catalyzed by the pyruvate dehydrogenase complex (hydroxyethyl-TPP). Show the reaction mechanism used by the pyruvate dehydrogenase complex to generate hydroxyethyl-TPP from pyruvate and TPP. TPP hydroxyethyl-TPP 3 (2 pts). Name this structure....
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