Biology for IGCSE & O level - Gas Exchange In Humans (Section 1 - No. 10)
Which of the following statements is correct about the gas exchange?
Carbon dioxide diffuses into the alveoli, oxygen into the capillaries.
Oxygen diffuses into the alveoli, carbon dioxide into the capillaries.
Both oxygen and carbon dioxide diffuse into the alveoli.
Both oxygen and carbon dioxide diffuse into the capillaries.
Explanation
During gas exchange, oxygen moves from the alveoli to the capillaries, and carbon dioxide moves from the capillaries to the alveoli.
Comments (0)
