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Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBreathing and Exchange of Gases1 Mark
MCQ
Where does gaseous exchange take place during respiration in a human being?
  • A
    Bronchi
  • B
    Pharynx
  • C
    Larophaynx
  • D
    Trachea
✓

Answer

  1. Bronchi

Explanation:

At the same time, carbon dioxide (CO2) is transmitted from the blood capillaries into the alveoli and then expelled through the bronchi and the upper respiratory tract. The inner surface of the lungs where the exchange of gases takes place is very large, due to the structure of the air sacs of the alveoli.

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