CO2 Transport and Partial Pressure

CO2 reacts with water to form bicarbonate ions

CO2 diffuses from the blood into the lungs

CO2 diffuses from the tissues into the blood

Bicarbonate ions combine with hydrogen ions to release CO2 and water (correct)

In the blood

In the air

In the tissues (correct)

In the lungs

They combine with hydrogen ions to release CO2 and water

They help maintain the acid-base balance in the body (correct)

They react with water to form bicarbonate ions

They allow CO2 to be exhaled from the lungs