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NEET Biology Photosynthesis in Higher Plants Question Bank \[{{C}_{4}}\] \ CAM \ Photorespiration

  • question_answer
    The first reaction in photorespiraton is  [RPMT 1999; CBSE PMT 2000; CPMT 2001]

    A) Carboxylation

    B) Decarboxylation

    C) Oxygenation

    D) Phosphorylation

    Correct Answer: C

    Solution :

    Three conditions are required for photorespiration (1) High O2 concentration (2) Low concentration of CO2 (3) High light intensity. During photorespiration oxygenation takes place firstly.


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