SSC General Science & Technology Sample Paper NCERT Sample Paper-3

  • 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 :

    [d] 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 Bohr's effect the \[C{{O}_{2}}\] released in respiring tissue accelerates the delivery of oxygen by faster and deeper breathing.


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