BIOD 151 - Module 2 Exam BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf
BIOD 151 - Module 2: Exam
Exam Information:
• Requires Respondus LockDown Browser + Webcam
• Points: 100
• Questions: 29
• Time Limit: 60 Minutes
Question 1: (4 pts)
How many lobes does the left human lung have?
• Correct Answer: 2 (Two lobes)
Question 2: (3 pts)
Air and food pass through which one of the following areas?
• Options:
• Trachea
• Nasopharynx
• Oropharynx
• Alveoli
• Correct Answer: Oropharynx
Question 3: (3 pts)
In the respiratory system, gas exchange occurs in:
• Options:
• A. Bronchi
• B. Respiratory bronchioles
• C. Terminal bronchioles
• D. Pulmonary alveoli
• E. B & D
• Correct Answer: E. Respiratory bronchioles and Pulmonary
alveoli
Question 4: (10 pts)
Label the following five items from the diagram:
• Your Answer:
• Label A: Nasal Cavity
• Label C: Soft Palate
This study source was downloaded by 1827175 from cliffsnotes.com on 01-13-2026 17:51:35 GMT -06:00
BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf
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, BIOD 151 - Module 2 Exam BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf
• Label E: Glottis
• Label F: Trachea
• Label H: Tongue
Question 5: (5 pts)
Explain what happens to the epiglottis during swallowing and why this
occurs.
• Answer: During swallowing, the epiglottis moves downward to
cover the trachea, preventing food or liquid from entering the lungs by
blocking the airway.
Question 6: (5 pts)
Explain at least two differences between Type I and Type II alveolar cells.
• Answer: Type I alveolar cells cover most of the alveolar surface
and are thin to facilitate gas exchange, while Type II alveolar cells produce
surfactant to maintain alveolar stability and can regenerate Type I cells if
needed.
Question 7: (2 pts)
True/False: Positive pressure is used to move air into the lungs.
• Correct Answer: False (Negative pressure is used.)
Question 8: (2 pts)
True/False: During exhalation, the diaphragm contracts to actively push air
out of the lungs.
• Correct Answer: False
Question 9: (2 pts)
True/False: During inhalation, the rib cage lifts in an upward motion to open
and expand the lungs.
• Correct Answer: True
Question 10: (2 pts)
True/False: As the thoracic cavity expands and lung volume increases, the
density of the gases filling the lungs increases.
This study source was downloaded by 1827175 from cliffsnotes.com on 01-13-2026 17:51:35 GMT -06:00
BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf
https://www.cliffsnotes.com//study-notes/19575187
BIOD 151 - Module 2: Exam
Exam Information:
• Requires Respondus LockDown Browser + Webcam
• Points: 100
• Questions: 29
• Time Limit: 60 Minutes
Question 1: (4 pts)
How many lobes does the left human lung have?
• Correct Answer: 2 (Two lobes)
Question 2: (3 pts)
Air and food pass through which one of the following areas?
• Options:
• Trachea
• Nasopharynx
• Oropharynx
• Alveoli
• Correct Answer: Oropharynx
Question 3: (3 pts)
In the respiratory system, gas exchange occurs in:
• Options:
• A. Bronchi
• B. Respiratory bronchioles
• C. Terminal bronchioles
• D. Pulmonary alveoli
• E. B & D
• Correct Answer: E. Respiratory bronchioles and Pulmonary
alveoli
Question 4: (10 pts)
Label the following five items from the diagram:
• Your Answer:
• Label A: Nasal Cavity
• Label C: Soft Palate
This study source was downloaded by 1827175 from cliffsnotes.com on 01-13-2026 17:51:35 GMT -06:00
BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf
https://www.cliffsnotes.com//study-notes/19575187
, BIOD 151 - Module 2 Exam BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf
• Label E: Glottis
• Label F: Trachea
• Label H: Tongue
Question 5: (5 pts)
Explain what happens to the epiglottis during swallowing and why this
occurs.
• Answer: During swallowing, the epiglottis moves downward to
cover the trachea, preventing food or liquid from entering the lungs by
blocking the airway.
Question 6: (5 pts)
Explain at least two differences between Type I and Type II alveolar cells.
• Answer: Type I alveolar cells cover most of the alveolar surface
and are thin to facilitate gas exchange, while Type II alveolar cells produce
surfactant to maintain alveolar stability and can regenerate Type I cells if
needed.
Question 7: (2 pts)
True/False: Positive pressure is used to move air into the lungs.
• Correct Answer: False (Negative pressure is used.)
Question 8: (2 pts)
True/False: During exhalation, the diaphragm contracts to actively push air
out of the lungs.
• Correct Answer: False
Question 9: (2 pts)
True/False: During inhalation, the rib cage lifts in an upward motion to open
and expand the lungs.
• Correct Answer: True
Question 10: (2 pts)
True/False: As the thoracic cavity expands and lung volume increases, the
density of the gases filling the lungs increases.
This study source was downloaded by 1827175 from cliffsnotes.com on 01-13-2026 17:51:35 GMT -06:00
BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf BIOD 151 - Module 2 Exam.pdf
https://www.cliffsnotes.com//study-notes/19575187
