Question

Which of the following

substances diffuses out of the
alveolus in the air during gas
exchange?
A. N₂ (nitrogen)
B. CO₂ (carbon dioxide)
C. O2 (oxygen)

Answer 1

CO₂ is the substance that diffuses out of the alveolus during gas exchange

Step-by-step explanation:

The substance that diffuses out of the alveolus in the air during gas exchange is CO₂ (carbon dioxide).

Learn more about Gas exchange in the alveolus