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Which compound is produced during carbon fixation?

A. PGA
B. G3P
C. RuBP
D. CHO

Answer :

Final answer:

The compound produced during carbon fixation is 3-phosphoglycerate (3-PGA). This occurs when CO₂ is fixed to RuBP by the enzyme RuBisCO, resulting in the formation of 3-PGA molecules. These molecules are crucial for the continuation of the Calvin cycle.


Explanation:

Carbon Fixation in the Calvin Cycle


During the process of carbon fixation, the compound produced is 3-phosphoglycerate (3-PGA). This occurs when the enzyme RuBisCO catalyzes the reaction between carbon dioxide (CO₂) and ribulose bisphosphate (RuBP). For every molecule of CO₂ that is fixed, two molecules of 3-PGA are generated. The sequence follows as:



  1. CO₂ + RuBP → 6-carbon intermediate

  2. 6-carbon intermediate splits to produce 2 molecules of 3-PGA


These 3-PGA molecules are then further reduced to glyceraldehyde 3-phosphate (G3P) using energy from ATP and electrons from NADPH, as part of the Calvin cycle. Therefore, the correct answer to which compound is produced during carbon fixation is 3-PGA.


Learn more about carbon fixation here:

https://brainly.com/question/37207680