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.

Answer;

a. 3 molecules 3 carbon

b. 6 molecules 18 carbon

c. 6 molecules 18 carbon

d. 5 molecules 15 carbon

e. 3 molecules 15 carbon

f. 3 molecules 15 carbon

Explanation;In the Calvin cycle, carbon atoms from CO2 are ncorporated into organic molecules and then  used to build three-carbon sugars, a process that is fueled by, and dependent on, ATP and NADPH from the light reactions.Calvin cycle take place in the stroma. Reactions of Calvin cycle are divided into three main stages: carbon fixation, reduction, and regeneration of the starting molecule.During carbon fixation, a CO2 molecule combines with a five carbon acceptor molecule ribulose-1,5-bisphosphate. The result is a six carbon compound that splits to two three carbon compound, 3-PGA.During reduction; ATP and NADPH are used to convert the 3-PGA molecules into molecules of a three-carbon sugar, glyceraldehyde-3-phosphate. Finally during regeneration, some G3P molecules are used to make glucose while others are recycled to regenerate RuBP acceptor.

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