CMC Medical CMC-Medical VELLORE Solved Paper-2012

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


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