NEET Sample Paper NEET Sample Test Paper-15

  • question_answer A photosynthesizing plant is releasing \[^{18}O\] more than the normal. The plant must have been supplied with

    A) \[{{O}_{3}}\]

    B) \[{{H}_{2}}O\]

    C) \[C{{O}_{2}}\,with{{\,}^{18}}O\]

    D) \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\,with{{\,}^{18}}O\]

    Correct Answer: B

    Solution :

    The phenomenon of breaking up of water into hydrogen and oxygen in the illuminated chloroplasts is called photolysis. Oxygen comes from photolysis of water was verified by Ruben and Kamen in 1941. Hence, the correct option is [b].


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