Question

what does the alveoli/capillary membrane allow? hemoglobin to enter the blood and erythrocytes to exit the blood erythrocytes to enter the blood and hemoglobin to exit the blood oxygen to enter the blood and carbon dioxide to exit the blood carbon dioxide to enter the blood and oxygen to exit the blood

Explanation:

The alveoli/capillary membrane is involved in gas exchange. Oxygen from the alveoli diffuses into the blood (as it is needed by the body's cells for cellular respiration). Carbon dioxide, a waste product of cellular respiration, diffuses from the blood into the alveoli (to be exhaled out of the body). Hemoglobin is inside erythrocytes (red - blood cells) and erythrocytes do not pass through the alveoli/capillary membrane.

Answer:

oxygen to enter the blood and carbon dioxide to exit the blood