Question

What function do the alveoli perform? Responses hold receptors for the sense of smell hold receptors for the sense of smell - no response given exchange oxygen in the air for carbon dioxide in the blood exchange oxygen in the air for carbon dioxide in the blood - no response given exchange oxygen in the blood for carbon dioxide in the air exchange oxygen in the blood for carbon dioxide in the air - no response given carry oxygenated blood away from the heart

Answer 1

The primary function of the alveoli is to **exchange oxygen in the air for carbon dioxide in the blood**. This process occurs during respiration, where oxygen from inhaled air diffuses into the blood within the capillaries surrounding the alveoli, while carbon dioxide is released from the blood into the alveoli to be exhaled.