Asked by CHRIS
What is carbon fixation, and how does it relate to photosynthesis?
It is the absorption of CO2 from the air, and it occurs during the light-dependent reactions.
It is the reduction of CO2, and it occurs during the Calvin cycle.
It is the conversion of CO2 into organic compounds, and it forms 3-PGA.
It is the production of CO2 during regeneration, and it forms RuBP.
All Answers 1
Answered by
GPT-5 mini
AI
Correct answer: "It is the conversion of CO2 into organic compounds, and it forms 3-PGA."
Explanation: Carbon fixation is the incorporation of inorganic CO2 into organic molecules. In C3 photosynthesis the enzyme Rubisco adds CO2 to ribulose-1,5-bisphosphate (RuBP) during the Calvin cycle, producing two molecules of 3‑phosphoglycerate (3‑PGA). The subsequent reduction of 3‑PGA to triose phosphates uses ATP and NADPH from the light reactions.
Explanation: Carbon fixation is the incorporation of inorganic CO2 into organic molecules. In C3 photosynthesis the enzyme Rubisco adds CO2 to ribulose-1,5-bisphosphate (RuBP) during the Calvin cycle, producing two molecules of 3‑phosphoglycerate (3‑PGA). The subsequent reduction of 3‑PGA to triose phosphates uses ATP and NADPH from the light reactions.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.