The partial pressure of carbon dioxide is 45 mm Hg inthe blood and 40 mm Hg in the alveoli. What happens tothe carbon dioxide?a. It diffuses into the blood.b. It diffuses into the alveoli.c. The gradient is too small for carbon dioxide todiffuse.d. It decomposes into carbon and oxygen

Body Structures & Functions
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Author:Scott
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Chapter17: Respiratory System
Section: Chapter Questions
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The partial pressure of carbon dioxide is 45 mm Hg in
the blood and 40 mm Hg in the alveoli. What happens to
the carbon dioxide?
a. It diffuses into the blood.
b. It diffuses into the alveoli.
c. The gradient is too small for carbon dioxide to
diffuse.
d. It decomposes into carbon and oxygen

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