Start learning →

Which structure belongs to the conducting (not respiratory) zone?

Aalveolar duct, just before alveoli
Balveolar sac, the final dead-end
Crespiratory bronchiole, with some alveoli
Dterminal bronchiole, before any alveoli
Answer & Solution
Correct answer: D. terminal bronchiole, before any alveoli
Terminal bronchioles are the last segment of the conducting zone below them, respiratory bronchioles, alveolar ducts and alveolar sacs all have alveoli embedded in their walls so they belong to the respiratory zone.
Practise this question with Quill — AP Intermediate 1st Year →

Keep practising Breathing and Exchange of Gases

Browse all Breathing and Exchange of Gases questions for AP Intermediate 1st Year, or explore more Biology topics.

Start a Breathing and Exchange of Gases lesson →