NEET Biology Photosynthesis in Higher Plants Question Bank Experiments

  • question_answer
    The path of\[C{{O}_{2}}\]in the dark reaction of photosynthesis was successfully traced by the use of the following or The dark reaction is traced by [CPMT 1990; MP PMT 1987; BHU 1992]

    A) \[{{O}_{2}}^{18}\]

    B) \[{{C}^{14}}{{O}_{2}}\]

    C) \[{{p}^{36}}\]

    D) X-rays

    Correct Answer: B

    Solution :

    Calvin traced the path in photosynthesis associated with dark reaction. Radioactive isotope of carbon \[({{C}^{14}})\]is used, it is observed that \[({{C}^{14}}{{O}_{2}})\] reduction of \[C{{O}_{2}}\] is definitely in dark reaction.


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