Fundamentholfundamenthol
NEET2022Biology
Q.

Which of the following is not the function of conducting part of respiratory system ?

  1. A

    It clears inhaled air from foreign particles

  2. B

    Inhaled air is humidified

  3. C

    Temperature of inhaled air is brought to body temperature

  4. D

    Provides surface for diffusion of O and CO

Solution

The conducting part of the respiratory system extends from the nostrils to the terminal bronchioles. Its functions include filtering, warming, and humidifying the inhaled air.

Gas exchange (diffusion of O and CO) does not occur in the conducting zone; it takes place in the respiratory zone (alveolar ducts, alveolar sacs, and alveoli). So statement (4) is not a function of the conducting part.

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