NEET Biology Photosynthesis in Higher Plants Question Bank Dark Reaction

  • question_answer
    First stable product of Calvin cycle has

    A) 2 carbon atoms

    B) 3 carbon atoms

    C) 4 carbon atoms

    D) 6 carbon atoms

    Correct Answer: B

    Solution :

    Ribulose - 1, 5 biphosphate (RuBP) acts as\[C{{O}_{2}}\]acceptor and 6 mols RuBP react with 6 mols of\[C{{O}_{2}}\]and given rise to 3-phosphoglyceric acid, 3 PGA is a first stable compound in\[{{C}_{3}}\]cycle (a 3 carbon atom).


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