What is the main difference between the conducting and exchange parts of the respiratory system?

What is the main difference between the conducting and exchange parts of the respiratory system?
  1. Conducting part is responsible for diffusion of O₂ and CO₂ while exchange part is responsible for transport of atmospheric air
  2. Conducting part is responsible for transport of atmospheric air while exchange part is responsible for diffusion of O₂ and CO₂
  3. Conducting part is responsible for humidification and regulation of body temperature while exchange part is responsible for clearing foreign particles
  4. Conducting part is responsible for clearing foreign particles while exchange part is responsible for humidification and regulation of body temperature

Solution

The conducting part of the respiratory system is responsible for transporting atmospheric air to the alveoli, clearing it from foreign particles, humidifying it and bringing it to body temperature. The exchange part of the respiratory system, which consists of the alveoli and their ducts, is the site of actual diffusion of O₂ and CO₂ between blood and atmospheric air.

Asked in: NCERT

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