Question

The exchange of oxygen and carbon dioxide between the air within the alveolus and the blood inside the capillaries takes place here.
A) Bronchioles
B) Alveoli
C) Respiratory Membrane
D) Bronchus

Answer 1

Answer: The correct answer should be B, Alveoli.

Explanation: Respiration, or oxygen-carbon dioxide gas exchange, takes place in the lung's Alveoli.