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The net reaction of the Calvin cycle is the conversion of CO2 into the three-carbon sugar G3P. Along the way, reactions rearrange carbon atoms among intermediate compounds and use the ATP and NADPH produced by the light reactions. In this exercise, you will track carbon atoms through the Calvin cycle as required for the net production of one molecule of G3P.

For each intermediate compound in the Calvin cycle, identify the number of molecules of that intermediate and the total number of carbon atoms contained in those molecules. As an example, the output G3P is labeled for you: 1 molecule with a total of 3 carbon atoms.
Labels may be used once, more than once, or not at all.

Respuesta :

Calvin Cycle

Explanation:

Calvin cycle reduces atmospheric carbon dioxide in 3C sugar with the use of ATP and NADPH,which produced in light reaction;Reaction of Calvin Cycle can be divided into 3 stages:

  • Carboxylation: Reaction catalysed by RUBISCO;RUBIP is the CO2 accceptor forming 6 molecules of 3 PGA(phosphoglycerate) is formed

Here 3 molecules with 3 carbons of CO2,6 molecules with 18 carbons of PGA

  • Reduction:Reduction of 3 PGA to glyceraldehyde 3 phosphate;1 molecule of glyceraldehyde 3 phosphate is the output which is used to make sugar while remaining 5 enters into regeneration  

Here 1 molecule with 3 carbon atoms of glyceraldehyde 3 phosphate

  • Regeneration:Regeneration of CO2 acceptor(RUBIP) from glyceraldehyde 3 phosphate

Here 5 molecules with 15 carbons of dihydroxy acetone phosphate and 3 molecules with 15 carbons of RUBIP  

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