what process is involved in O2 and CO2 exchange in lungs si

what process is involved in O2 and CO2 exchange in lungs ( simple diffusion, facilitated diffusion, active transport, or osmosis)?

Solution

Simple diffusion is involved in O2 and CO2 exchange in lungs. This gas exchange takes place in the alveoli. Oxygen from the inhaled air diffuses through the walls of the alveoli and adjacent capillaries into the red blood cells. The oxygen is then carried by the blood to the body tissues.