JCECE Medical JCECE Medical Solved Paper-2009

  • question_answer
    When \[\text{C}{{\text{O}}_{\text{2}}}\]concentration in blood increases, breathing becomes

    A)  shallower and slow

    B)  there is, no effect on breathing

    C)  slow and deep

    D)  faster and deeper

    Correct Answer: D

    Solution :

     When \[\text{C}{{\text{O}}_{\text{2}}}\]concentration in blood increases, breathing becomes faster and deeper. The effect of increased \[\text{C}{{\text{O}}_{\text{2}}}\]is to decrease the affinity of haemoglobin for \[{{\text{O}}_{\text{2}}}.\] Thus due to Bohrs effect the \[\text{C}{{\text{O}}_{\text{2}}}\]released in respiring tissue accelerates the delivery of oxygen by faster and deeper breathing.


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