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NEET Biology Photosynthesis in Higher Plants Question Bank Assertion and Reason

  • question_answer
    Assertion : Six molecules of\[C{{O}_{2}}\] and twelve molecules of \[NADP{{H}^{+}}+{{H}^{+}}\]and 18 ATP are used to form one hexose molecule. Reason : Light reaction results in formation of \[ATP\]and \[NADP{{H}_{2}}\]  [AIIMS 2002]

    A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

    B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion 

    C) If the assertion is true but the reason is false

    D) If both the assertion and reason are false

    E) If the assertion is false but reason is true

    Correct Answer: B

    Solution :

    Six molecules of\[C{{O}_{2}}\]enter Calvin cycle to produce one hexose molecule whereas 18 ATP, \[12NADPH+{{H}^{+}}\]molecules are used up. The light reaction of photosynthesis results in \[ATP\]and\[NADP{{H}_{2}}\]formation.


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