Please answer this: -  Oxygen enters the body through the mouth or nose - The oxygen travels into the lungs - The oxygen binds to hemoglobin proteins within erythrocytes (red blood cells) - The erythrocytes are pumped through the body by the heart  What might be the last step of the process?
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Answer: All cells receive the oxygen.


Please answer this: -  You breathe in - Diaphragm and other muscles expand to allow room for your lungs to fill - The air flows into the narrow bronchioles in the lungs - From the bronchioles to the alveoli - The oxygen enters into the bloodstream - Is switched with the carbon dioxide in the bloodstream - The carbon dioxide enters through the alveoli - Through the narrow bronchioles - Into the lungs  What might be the last step of the process?
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Answer: The carbon dioxide is exhaled out of the body.


Please answer this: -  He air we breathe contains oxygen and other gases - Once in the lungs, oxygen is moved into the bloodstream and carried through your body - At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide - Your bloodstream then carries this waste gas back to the lungs where it is removed from the blood stream and then exhaled  What might be the last step of the process?
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Answer:
Your lungs and respiratory system automatically perform this vital process, called gas exchange