For efficiency in loading and unloading oxygen and carbon dioxide in the lungs,

Question

For efficiency in loading and unloading oxygen and carbon dioxide in the lungs, it is most necessary: (Choose the best answer)
A) that more blood flows past functional alveoli than past nonfunctional alveoli
B) that alveoli are dilated and alveoli constricted
C) that bronchioles are constricted and alveoli dilated
D) that the pH of the blood is slightly acidic
E) that the pH of the blood is alkaline For efficiency in loading and unloading oxygen and carbon dioxide in the lungs, it is most necessary: (Choose the best answer)
A) that more blood flows past functional alveoli than past nonfunctional alveoli
B) that alveoli are dilated and alveoli constricted
C) that bronchioles are constricted and alveoli dilated
D) that the pH of the blood is slightly acidic
E) that the pH of the blood is alkaline
A) that more blood flows past functional alveoli than past nonfunctional alveoli
B) that alveoli are dilated and alveoli constricted
C) that bronchioles are constricted and alveoli dilated
D) that the pH of the blood is slightly acidic
E) that the pH of the blood is alkaline

Explanation / Answer

e) that pH of the blood is alkaline.

An increase in blood pH increases loading and unloading of oxygen and carbon dioxide in lungs.

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