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Red blood cells are responsible for oxygen exchange
oxygen and carbon dioxide. oxygen is delivered by the blood into the cell and oxygen from the cell is is given to the blood in exchange to be expelled by the lungs.
in the lungs
Exchange carbon dioxide and oxygen
Oxygen
Oxygen exchange between alveoli and blood capillaries in the lungs
Blood releases its oxygen into the tissues at the capillary level.
Cappilaries
Oxygen and Carbon Dioxide.
blood
Gas exchange occurs in the vessels of the lungs
Alveoli exchange Oxygen with blood in capillaries