Answer :
Final answer:
The compound produced during regeneration in the Calvin cycle is RuBP (ribulose bisphosphate). This process enables the continuation of the cycle by utilizing G3P to regenerate RuBP. PGA and rubisco play different roles in the overall process of photosynthesis.
Explanation:
Understanding the Regeneration Phase in Photosynthesis
The process of photosynthesis involves a series of reactions that convert light energy into chemical energy, primarily in the form of glucose. In particular, the regeneration phase of the Calvin cycle is crucial as it regenerates RuBP (ribulose bisphosphate), enabling the cycle to continue.
During this phase, compounds are rearranged to regenerate RuBP from G3P (glyceraldehyde 3-phosphate). Specifically, for every six molecules of G3P produced, five are used to regenerate three molecules of RuBP, allowing the cycle to perpetuate. Thus, while PGA (3-phosphoglycerate) is an intermediate formed earlier, it is not the product of regeneration, nor is rubisco which is the enzyme that facilitates the fixation of carbon dioxide.
Key Points
- The main compound produced during regeneration is RuBP.
- This process uses some of the G3P produced earlier in the Calvin cycle.
- PGA is involved in the earlier stages of the cycle and serves different roles.
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