Final answer:
Gas exchange does not occur in the terminal bronchiole. It takes place in the alveolus, which is part of the respiratory zone.
Step-by-step explanation:
Gas exchange does not occur in the terminal bronchiole. Gas exchange between the lung and blood takes place in the alveolus, which is part of the respiratory zone. The terminal bronchioles connect to the respiratory bronchioles, which then lead to the alveolar ducts and alveolar sacs. The alveoli are responsible for gas exchange.