chapter18 Gas Exchange and Transport

chapter18 Gas Exchange and Transport - Exam Name_ MULTIPLE...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Of the factors that inFuence diffusion of respiratory gases, the most variable and, therefore, important factor to consider is the A) concentration gradient. B) diffusion distance. C) membrane surface area. D) membrane thickness. E) electrical charge. 2) If the partial pressure of oxygen in both air and water is 100 mm Hg, then the concentration of the oxygen is the same in the air and water. A) true B) false 3) The process by which dissolved gases are exchanged between the blood and interstitial Fuids is A) pulmonary ventilation. B) external respiration. C) diffusion. D) cellular respiration. E) breathing. 4) High carbon dioxide concentration in body Fuids is called A) carbonation. B) hyperdioxia. C) hyperoxia. D) hypercarbia. E) hypercapnia. 5) The lung pathology most likely to result from certain kinds of heart disease is A) emphysema. B) asthma. C) pulmonary edema. D) ±brotic lung disease. E) lung cancer. 6) At a P O2 of 70 mm Hg and normal temperature and pH, hemoglobin is __________% saturated with oxygen. A) 10 B) 25 C) 50 D) 75 E) over 90 7) The partial pressure of oxygen in arterial blood is approximately __________ mm Hg. A) 40
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chapter18 Gas Exchange and Transport - Exam Name_ MULTIPLE...

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