Answer:
If all the pulmonary alveoli were damaged, the function of the respiratory system, consisting of breathing so that gas exchange occurs, would not be possible.
Step-by-step explanation:
The pulmonary alveoli are the functional units of the respiratory system, since in them occurs the exchange of O₂ and CO₂ that guarantees life. These structures are located at the end of the bronchial tree, and there the inspired air arrives, besides containing the air that will be exhaled.
If the pulmonary alveoli were damaged, the respiratory function - and the gas exchange - could not occur, which would negatively impact the function of the respiratory system.