The Pulmonary System
​Practice Quiz A-09
​1. All of the following are part of the pulmonary conduction zone EXCEPT:
  • A. Diaphragm
  • B. Trachea
  • C. Bronchia
  • D. Alveoli

2. What is the by-product of oxidative phosphorylation in the production of ATP?
  • A. Oxygen
  • B. Hydrogen
  • C. Carbon Dioxide
  • D. Carbon Monoxide

3. All of the following are part of the respiratory zone EXCEPT:
  • A. Tertiary bronchi
  • B. Respiratory bronchioles
  • C. Alveolar ducts
  • D. Alveoli

4. What structure is responsible for gas exchange in the lungs?
  • A. Alveolar pore
  • B. Alveolar sac
  • C. Alveolar macrophage
  • D. Type II alveolar cell

5. All of the following are part of the respiratory membrane EXCEPT:
  • A. Alveolar epithelial (Type I) cells
  • B. Elastic membrane
  • C. Alveolar pores
  • D. Capillary endothelial membrane

6. How does the respiratory membrane allow gases to cross?
  • A. Active transport
  • B. Selective transport
  • C. Facilitated diffusion
  • D. Simple (passive) diffusion

7. Approximately how thick is the respiratory membrane?
  • A. 0.1 mm
  • B. 0.5 mm
  • C. 1.0 mm
  • D. 5.0 mm

8. Regarding surfactant, all of the following are true EXCEPT:
  • A. Composed of phospholipids and proteins
  • B. Has elastic properties
  • C. Produced by Type II alveolar cells
  • D. Reduces surface tension

9. Which cell in the lungs is part of the immune system?
  • A. Type I alveolar cell
  • B. Type II alveolar cell
  • C. Alveolar macrophage cell
  • D. Squamous epithelial cell

10. What drives the need to breathe?
  • A. Depletion of ATP
  • B. Afferent stretch receptors
  • C. Low blood levels of oxygen
  • D. High blood levels of carbon dioxide
The correct answers are:
1-D, 2-C, 3-A, 4-B, 5-C, 6-D, 7-B, 8-B, 9-C, 10-D