HUMAN PHYSIOLOGY
BREATHING AND RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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B7.5 what is the function of the alveoli
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to breathe
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transport water to and from the bloodstream
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transport blood
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exchange oxygen and carbon dioxide molecules to and from the bloodstream.
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Explanation:
Detailed explanation-1: -The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body.
Detailed explanation-2: -This exchange of oxygen and carbon dioxide is called respiration.
Detailed explanation-3: -Diffusion is the process by which exchange of gases take place between blood and body tissues.
Detailed explanation-4: -External respiration is the formal term for gas exchange. It describes both the bulk flow of air into and out of the lungs and the transfer of oxygen and carbon dioxide into the bloodstream through diffusion.
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