NEET Biology Respiration In Plants Question Bank Assertion and Reason

  • question_answer
    Assertion : Both hexokinase and glucokinase require divalent cation\[M{{g}^{++}}\]or\[M{{n}^{++}}\]. Reason : The divalent cations act as catalysts.

    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: C

    Solution :

    Both kinases require a divalent cation\[(M{{g}^{2+}}orM{{n}^{2+}})\], which first combines with ATP to form the true substrate, \[MgAT{{P}^{2-}}\]or\[~MnAT{{P}^{2-}}\]


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