14) You would expect reaction 6 would likely involve what cofactor? a) Biotin b)

Question

14) You would expect reaction 6 would likely involve what cofactor? a) Biotin b) Thiamine Pyrophosphate c) Pyridoxal Phosphate d) Lipoic Acid 15) A reaction mechanism similar to that of reaction 6 is part of a) glycolysis c) pentose phosphate pathway d) ethanol prodaction from pyruvate by yeast Reaction 7 16 The reaction as written above has a strong negative free energy under physiological conditions. This is because of a) Resonance stabilization of the carboxylic acid b) Resonance stabilizaticn of the phosphate c) The high concentration of water d) All of the above 17) The intermediate that is likely formed in reaction &involves; a) An enodiol b) A beta keto acid c) AC C double bond formed by dehydration

Explanation / Answer

Ans 14 B) Thiamine pyrophosphate

The reaction 6 has a six membered carbohydrate reactant which gets converted into a 5 membered carbohydrate product with the release of a carbon dioxide molecule. The reaction is called as decarboxylation reaction , which involves cofactor Thiamine pyrophosphate.

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