Answer :
Final answer:
The correct order of molecular conversions for the Calvin cycle is RuBP+CO₂→[RuBisCo]3-PGA→G3P. In this process, RuBisCo incorporates carbon dioxide into an organic molecule called RuBP, forming 3-PGA. Then, with the help of ATP and NADPH, 3-PGA is converted to G3P.
Explanation:
The correct order of molecular conversions for the Calvin cycle is option C: RuBP+CO₂→[RuBisCo]3-PGA→G3P.
In stage 1 of the Calvin cycle, the enzyme RuBisCo incorporates carbon dioxide (CO₂) into an organic molecule, ribulose bisphosphate (RuBP), forming 3-phosphoglycerate (3-PGA).
In stage 2, using energy from ATP and NADPH generated during the light-dependent reactions, 3-PGA is converted to glyceraldehyde-3-phosphate (G3P). Some G3P molecules are used to build glucose, while the remaining G3P molecules regenerate RuBP, enabling the cycle to continue.
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