21.4 Gas Exchange Flashcards
1
Q
What determines the direction of respiratory gas movement?
temperature
gas solubility in water
molecular weight of the gas molecule
partial pressure gradient
A
What determines the direction of respiratory gas movement?
Answer: D partial pressure gradient
2
Q
The partial pressure of carbon dioxide in the blood of pulmonary capillaries is approximately __________.
35 mm Hg
45 mm Hg
50 mm Hg
70 mm Hg
A
The partial pressure of carbon dioxide in the blood of pulmonary capillaries is approximately __________.
Answer: B. 45 mm Hg
3
Q
True or False:
The partial pressure gradient of oxygen determines the direction of the movement of this respiratory gas.
A
True
The partial pressure gradient of oxygen determines the direction of the movement of this respiratory gas.
