NEET Biology NEET PYQ-Photosynthesis and Translocation of Organic Solute

  • question_answer
    Fixation of one molecule of CO2 through Calvin cycle requires: [AIPMT 2000]

    A) 3 ATP and 3 NADPH2 molecules

    B) 3 ATP and 2 NADPH2 molecules

    C) 2 ATP and 1 NADPH2 molecules

    D) 1 ATP and 2 NADPH2 molecules

    Correct Answer: B

    Solution :

    [B] 2 ATP are required during conversion of PGA to 1, 3 diphosphoglyceric acid and 1 ATP during conversion of glyceraldehyde phosphate to ribulose biphosphate. 2 NADH2 molecules are utilized for converting 1, 3 diphosphoglyceric acid to glyceraldehyde phosphate.


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