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Question and Scope of Answer The question is about metaphors and semantics relating to the carbon stoichiometry of the reactions producing dihydroxyacetone phosphate from carbon dioxide. I have decided to provide a clarification of the carbon stoichiometry, ignoring hydrogen and oxygen stoichiometry (even though I find the reduction and energetics more ...


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You're looking at a version of the Calvin cycle that has been simplified to consider 3 "turns" all together as the steps necessary to produce one 3-carbon product. A hint is that you see three CO2 molecules entering rather than one. You can look for another diagram that has a one-carbon version, like at https://en.m.wikipedia.org/wiki/Calvin_cycle ...


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