In which process does carbon dioxide join photosynthesis?(a) Oxidation(b) PS I(c) Dark reaction(d) ReductionThis question was addressed to me during an interview.I'm obligated to ask this question of Higher Plants Photosynthesis topic in section Photosynthesis in Higher Plants of Biology – Class 11

In which process does carbon dioxide join photosynthesis?(a) Oxidation

1.	In which process does carbon dioxide join photosynthesis?(a) Oxidation(b) PS I(c) Dark reaction(d) ReductionThis question was addressed to me during an interview.I'm obligated to ask this question of Higher Plants Photosynthesis topic in section Photosynthesis in Higher Plants of Biology – Class 11
Answer» Correct CHOICE is (C) Dark reaction The explanation is: Carbon dioxide is entering the photosynthetic PATHWAY through dark reaction. RuBP reacts with CO2 to form the FIRST unstable carbon COMPOUND. So, here 6 molecules of CO2 are required to start dark reaction.

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