BIOD 151 Module 2 Exam
2026/2027 with Solution
BIOD 151 – Module 2: Exam
Exam Information:
• Requires Respondus LockDown Browser + Webcam
• Points: 100
• Questions: 29
• Time Limit: 60 Minutes
1. How many lobes does the right lung have?
CORRECT ANSWER: Three
Explanation:
The right lung has three lobes: the superior, middle, and inferior
lobes. They are separated by the horizontal and oblique fissures.
,The left lung has only two lobes because space is needed for the
heart.
2. Air, and not food, passes through which of the following
areas?
A. Esophagus
B. Nasopharynx
C. Oropharynx
D. Both A and C
CORRECT ANSWER: B. Nasopharynx
Explanation:
The nasopharynx is part of the respiratory pathway and
conducts air from the nasal cavity toward the oropharynx. Food
does not normally pass through the nasopharynx. The
oropharynx and laryngopharynx are shared pathways for both
air and food.
,3. Air and food pass through which one of the following
areas?
CORRECT ANSWER: Oropharynx
Explanation:
The oropharynx is a common passageway for both the
respiratory and digestive systems. Air passes toward the larynx,
while swallowed food moves toward the laryngopharynx and
esophagus.
4. Rings of cartilage line much of the respiratory tract. In
which of the following would cartilage NOT be found?
A. Trachea
B. Larynx
C. Bronchi
D. Alveoli
CORRECT ANSWER: D. Alveoli
, Explanation:
Alveoli do not contain cartilage because they are specialized for
gas exchange. Their walls are extremely thin and consist
primarily of simple squamous epithelium. Cartilage is present in
larger conducting airways such as the trachea and bronchi,
where it helps maintain airway patency.
5. Label the following on a respiratory-system diagram: A.
CORRECT ANSWER: Nasal cavity
Explanation:
The nasal cavity is the internal space behind the external nose. It
warms, humidifies, and filters incoming air before the air travels
farther into the respiratory tract.
6. Label the following on a respiratory-system diagram: B.
CORRECT ANSWER: Oral cavity
2026/2027 with Solution
BIOD 151 – Module 2: Exam
Exam Information:
• Requires Respondus LockDown Browser + Webcam
• Points: 100
• Questions: 29
• Time Limit: 60 Minutes
1. How many lobes does the right lung have?
CORRECT ANSWER: Three
Explanation:
The right lung has three lobes: the superior, middle, and inferior
lobes. They are separated by the horizontal and oblique fissures.
,The left lung has only two lobes because space is needed for the
heart.
2. Air, and not food, passes through which of the following
areas?
A. Esophagus
B. Nasopharynx
C. Oropharynx
D. Both A and C
CORRECT ANSWER: B. Nasopharynx
Explanation:
The nasopharynx is part of the respiratory pathway and
conducts air from the nasal cavity toward the oropharynx. Food
does not normally pass through the nasopharynx. The
oropharynx and laryngopharynx are shared pathways for both
air and food.
,3. Air and food pass through which one of the following
areas?
CORRECT ANSWER: Oropharynx
Explanation:
The oropharynx is a common passageway for both the
respiratory and digestive systems. Air passes toward the larynx,
while swallowed food moves toward the laryngopharynx and
esophagus.
4. Rings of cartilage line much of the respiratory tract. In
which of the following would cartilage NOT be found?
A. Trachea
B. Larynx
C. Bronchi
D. Alveoli
CORRECT ANSWER: D. Alveoli
, Explanation:
Alveoli do not contain cartilage because they are specialized for
gas exchange. Their walls are extremely thin and consist
primarily of simple squamous epithelium. Cartilage is present in
larger conducting airways such as the trachea and bronchi,
where it helps maintain airway patency.
5. Label the following on a respiratory-system diagram: A.
CORRECT ANSWER: Nasal cavity
Explanation:
The nasal cavity is the internal space behind the external nose. It
warms, humidifies, and filters incoming air before the air travels
farther into the respiratory tract.
6. Label the following on a respiratory-system diagram: B.
CORRECT ANSWER: Oral cavity
