Q09 - Medical-Fitness Technicians

1. All of the following are part of the pulmonary conduction zone EXCEPT: *

A. Diaphram B. Trachea C. Bronchia D. Alveoli

1. The correct answer is: D

2. What is the by-product of oxidative phosphorylation in the production of ATP? *

A. Oxygen B. Hydrogen C. Carbon Dioxide D. Carbon Monoxide

2. The correct answer is: C

3. All of the following are part of the respiratory zone EXCEPT: *

A. Tertiary bronchi B. Respiratory bronchioles C. Alveolar ducts D. Alveoli

3. The correct answer is: A

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

4. The correct answer is: B

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

5. The correct answer is: C

6. How does the respiratory membrane allow gases to cross? *

A. Active transport B. Selective transport C. Facilitated diffusion D. Simple (passive) diffusion

6. The correct answer is: D

7. Approximately how thick is the respiratory membrane? *

A. 0.1 mm B. 0.5 mm C. 1.0 mm D. 5.0 mm

7. The correct answer is: B

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

8. The correct answer is: B

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

9. The correct answer is: C

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

10. The correct answer is: D

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Medical-Fitness Technicians