Bio 204 Purdue Exam 1- 2023 with 100% correct answers

If the partial pressure of oxygen in inspired air is 150 mm Hg compared with 110 mmHg in alveolar air, what is the most likely value for expired air? A. 125 B. 104 C. 80 D. 180 - correct answer A. Pulmonary surfactant: A. causes atelectasis when secreted in excessive amounts B. contains carbonic anhydrase C. is secreted by type II alveolar epithelial cells D. contains a mixture of carbohydrates - correct answer C. Atelectasis is... A. pulmonary embolism B. hypoventilation C. bronchial spasm D. alveolar collapse - correct answer D. The major component of pulmonary surfactant is... A. electrolytes B. carbohydrates C. lipids D. proteins - correct answer C. The cause of adult respiratory distress syndrome is... A. lack of pulmonary surfactant B. bronchiolar constriction C. pulmonary embolism D. pulmonary edema - correct answer A. The "Adam's Apple" represents ___________ cartilage. A. cricoid B. thyroid C. arytenoid D. cuneiform - correct answer B. In which structure is blood least oxygenated? A. left atrium B. pulmonary veins