Is Carbon dioxide absorbed by the lungs and stored in alveoli?

No, carbon dioxide is not absorbed by the lungs or stored in the alveoli. Instead, the primary function of the alveoli is to facilitate the exchange of gases; oxygen is absorbed into the bloodstream while carbon dioxide, a waste product of metabolism, is expelled from the blood into the alveoli to be exhaled. This process is essential for maintaining proper respiratory function and gas exchange in the body.