Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2006

  • question_answer
    Mammalian lungs contain a large number of minute alveoli (air sacs). This is to allow

    A)  more space for increasing the total volume of inspired air

    B)  more surface area for diffusion of gases

    C)  more spongy texture for keeping lungs in proper shape

    D)  more nerve supply to keep the organs working more efficiently

    Correct Answer: B

    Solution :

    Mammalian lungs contain a large number of minute alveoli (air sacs) and this alveoli allow more surface area for diffusion of gases.


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