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7th Class Science Respiration in Organisms Question Bank Respiration in organisms

  • question_answer
    Why do we get, muscle cramps after heavy exercise?

    A)  It is due to the partial breakdown of glucose to produce lactic acid.

    B)  It is due to the complete breakdown of glucose to produce lactic acid.

    C)  It is due to the muscle cells that respire in the presence of oxygen.

    D)  It is due to the increased supply of oxygen to muscle cells.

    Correct Answer: A

    Solution :

    In muscle cells partial breakdown of glucose produces lactic acid.


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