EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Select the answer that is most scientifically accurate:
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air goes in and out and that’s how our body gets oxygen
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air gets delivered to our cells through some pipes
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oxygen is absorbed from the air and delivered to our cells
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oxygen diffuses from the air in our lungs, into our blood cells which then transport the oxygen to our cells
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Explanation:
Detailed explanation-1: -Inside the red blood cell, oxygen reacts chemically with hemoglobin and is transported by both free and hemoglobin-facilitated diffusion. Oxygen diffuses through the cell membrane and is transported in blood plasma by free diffusion and by convection.
Detailed explanation-2: -Ventilation is the process by which air moves in and out of the lungs. Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the alveoli and the capillaries in the lungs. Perfusion is the process by which the cardiovascular system pumps blood throughout the lungs.
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