BIOLOGY (BIOL 235) EXAM ACTUAL
QUESTIONS WITH COMPLETE SOLUTIONS
(A+ verified,100% Complete Guide)
Athabasca University.
,Question type: Multiple Choice
1) Which of the following is NOT part of the upper respiratory system?
a) Nose
b) Oral cavity
c) Pharynx
d) Trachea
e) Nasal meatuses
Answer: d
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
2) Which of the following is NOT a conducting zone action?
a) Clean air of debris
b) Conduct air into the lungs
c) Add water to air
d) Warm air
e) All of these are actions of the conducting zone.
Answer: e
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
3) Which of the following is NOT a factor that determines the rate of pulmonary and systemic
gas exchange?
,a) Partial pressure difference of gases
b) surface are availability for gas exchange
c) Diffusion distance
d) Molecular weight and solubility of the gases
e) All of these are factors that determine the rate of pulmonary and systemic gas exchange.
Answer: e
Difficulty: Medium
Study Objective 1: SO 23.4 Understand the exchange of oxygen and carbon dioxide, including
the involvement of Dalton’s and Henry’s Laws.
Section Reference 1: Sec 23.4 Exchange of Oxygen and Carbon Dioxide
4) Which of the following is a passageway for air, food and water?
a) Pharynx
b) Larynx
c) Paranasal sinuses
d) Trachea
e) Esophagus
Answer: a
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
5) Which structure prevents food or water from entering the trachea?
a) Arytenoid cartilage
b) Epiglottis
c) Nasopharynx
d) Thyroid cartilage
e) Paranasal sinus
Answer: b
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
, Study Objective 2: SO 23.1.2 Identify the functions of each respiratory system structure.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
6) The gas law that describes the pressure changes that occur during pulmonary ventilation is
a) Boyle’s law
b) Charles’ law
c) Henry’s law
d) The inhalation law
e) The law of partial pressure
Answer: a
Difficulty: Easy
Study Objective 1: SO 23.2 Describe the events that cause inhalation and exhalation.
Section Reference 1: Sec 23.2 Pulmonary Ventilation
7) Which structure is located anterior to the esophagus and carries air to the bronchi?
a) Trachea
b) Larynx
c) Nasopharynx
d) Pharynx
e) None of these choices
Answer: a
Difficulty: Medium
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
8) Which of the following is the primary gas exchange site?
a) Trachea
b) Bronchiole
c) Nasal sinuses
d) Alveolus
e) Bronchus
Answer: d
QUESTIONS WITH COMPLETE SOLUTIONS
(A+ verified,100% Complete Guide)
Athabasca University.
,Question type: Multiple Choice
1) Which of the following is NOT part of the upper respiratory system?
a) Nose
b) Oral cavity
c) Pharynx
d) Trachea
e) Nasal meatuses
Answer: d
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
2) Which of the following is NOT a conducting zone action?
a) Clean air of debris
b) Conduct air into the lungs
c) Add water to air
d) Warm air
e) All of these are actions of the conducting zone.
Answer: e
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
3) Which of the following is NOT a factor that determines the rate of pulmonary and systemic
gas exchange?
,a) Partial pressure difference of gases
b) surface are availability for gas exchange
c) Diffusion distance
d) Molecular weight and solubility of the gases
e) All of these are factors that determine the rate of pulmonary and systemic gas exchange.
Answer: e
Difficulty: Medium
Study Objective 1: SO 23.4 Understand the exchange of oxygen and carbon dioxide, including
the involvement of Dalton’s and Henry’s Laws.
Section Reference 1: Sec 23.4 Exchange of Oxygen and Carbon Dioxide
4) Which of the following is a passageway for air, food and water?
a) Pharynx
b) Larynx
c) Paranasal sinuses
d) Trachea
e) Esophagus
Answer: a
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
5) Which structure prevents food or water from entering the trachea?
a) Arytenoid cartilage
b) Epiglottis
c) Nasopharynx
d) Thyroid cartilage
e) Paranasal sinus
Answer: b
Difficulty: Easy
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
, Study Objective 2: SO 23.1.2 Identify the functions of each respiratory system structure.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
6) The gas law that describes the pressure changes that occur during pulmonary ventilation is
a) Boyle’s law
b) Charles’ law
c) Henry’s law
d) The inhalation law
e) The law of partial pressure
Answer: a
Difficulty: Easy
Study Objective 1: SO 23.2 Describe the events that cause inhalation and exhalation.
Section Reference 1: Sec 23.2 Pulmonary Ventilation
7) Which structure is located anterior to the esophagus and carries air to the bronchi?
a) Trachea
b) Larynx
c) Nasopharynx
d) Pharynx
e) None of these choices
Answer: a
Difficulty: Medium
Study Objective 1: SO 23.1 Describe the anatomical structure and function of the respiratory
system components.
Study Objective 2: SO 23.1.1 Describe the anatomy and histology of the nose, pharynx, larynx,
trachea, bronchi, and lungs.
Section Reference 1: Sec 23.1 Respiratory System Anatomy
8) Which of the following is the primary gas exchange site?
a) Trachea
b) Bronchiole
c) Nasal sinuses
d) Alveolus
e) Bronchus
Answer: d
