BCECE Medical BCECE Medical Solved Papers-2015

  • question_answer
    Native people of plain areas moves to hilly areas, after a few months will have

    A)  physically unfit to indulge in high energy games

    B)  have normal blood (RBC) count with Hb having high binding affinity to \[{{O}_{2}}\]

    C)  have increased count of RBC, Hb shows decreased affinity to \[{{O}_{2}}\]

    D)  suffer from nausea, fatigue and other symptoms of altitude sickness

    Correct Answer: C

    Solution :

    As a person moves up to hilly area/the \[p{{O}_{2}}\]and total atmospheric pressure decreases. Decrease in \[p{{O}_{2}}\], stimulates the JG cells of kidney to secrete erythropoetin hormone, thus increasing the number of RBCs. At high altitudes, haemoglobin has lower binding affinity to \[{{O}_{2}}\] because of decreased\[p{{O}_{2}}\].


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