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Which of these take place in the first step of the Calvin pathway?(a) 3 molecules of 2PGA are formed(b) RuBisCO combines with CO2(c) RuBP and CO2 give PGA(d) RuBP acts as a catalystI got this question during an online exam.I'm obligated to ask this question of Higher Plants Photosynthesis in chapter Photosynthesis in Higher Plants of Biology – Class 11

Answer»

Correct option is (c) RUBP and CO2 GIVE PGA

Explanation: The FIRST step of the Calvin pathway or the Calvin cycle is the carbon dioxide fixation step. The carbon dioxide ACCEPTOR molecule RuBP combines with carbon dioxide to give 2 molecules of 3PGA.



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