BIO-202 HUMAN ANATOMY AND PHYSIOLOGY II FINAL
EXAM | BIO 202 FINAL EXAM LATEST ACTUAL EXAM WITH
200 QUESTIONS AND CORRECT ANSWERS, 2025/2026 TEST
BANK - GRAND CANYON UNIVERSITY
The main site of gas exchange is the ________.
A) alveoli
B) respiratory bronchiole
C) alveolar duct
D) alveolar sacs
The loudness of a person's voice depends on the ________.
A) force with which air rushes across the vocal folds
B) strength of the intrinsic laryngeal muscles
C) length of the vocal folds
D) thickness of vestibular folds
The walls of the alveoli are composed of two types of cells, type I and type II. The
function of type II is to
________.
A) protect the lungs from bacterial invasion
B) secrete surfactant
C) replace mucus in the alveoli
D) trap dust and other debris
Page 1 of 53
,Complete the following statement using the choices below. Air moves out of the lungs
when the pressure inside the lungs is ________.
A) equal to the pressure in the atmosphere
B) greater than the pressure in the atmosphere
C) greater than the intra- alveolar pressure
D) less than the pressure in the atmosphere
Which of the following is true regarding normal quiet expiration of air?
A) It is a passive process that depends on the recoil of elastic fibers that were
stretched during inspiration.
B) It depends on the complete lack of surface tension on the alveolar wall.
C) It is driven by increased blood CO2 levels.
D) It requires contraction of abdominal wall muscles.
Which of the following maintains the patency (openness) of the trachea?
A) pseudostratified ciliated epithelium
B) Surface tension of water
C) C- shaped cartilage rings
D) surfactant production
Intrapulmonary pressure is the ________.
A) pressure within the alveoli of the lungs
B) negative pressure in the intrapleural space
C) pressure within the pleural cavity
Page 2 of 53
,D) difference between atmospheric pressure and respiratory pressure
The relationship between gas pressure and gas volume is described by ________.
A) Boyle's law
B) Henry's law
C) Dalton's law
D) Charles' law
The statement, "in a mixture of gases, the total pressure is the sum of the individual
partial pressures of gases
in the mixture" paraphrases ________.
A) Boyle's law
B) Charles' law
C) Dalton's law
D) Henry's law
Surfactant helps to prevent the alveoli from collapsing by ________.
A) warming the air before it enters
B) protecting the surface of alveoli from dehydration and other environmental variations
C) humidifying the air before it enters
D) Interfering with the cohesiveness of water molecules, thereby reducing the
surface tension of alveolar fluid
For gas exchange to be efficient, the respiratory membrane must be ________.
Page 3 of 53
, A) The thickness of the respiratory membrane is not important in the efficiency of gas
exchange.
B) Between 5 and 6 micrometers thick
C) 0.5 to 1 micrometer thick
D) At least 3 micrometers thick
With the Bohr effect, more oxygen is released because a(n) ________.
A) increase in pH (alkalosis) strengthens the hemoglobin- oxygen bond
B) decrease in pH (acidosis) strengthens the hemoglobin- oxygen bond
C) decrease in pH (acidosis) weakens the hemoglobin- oxygen bond
D) increase in pH (alkalosis) weakens the hemoglobin- oxygen bond
The most powerful respiratory stimulus for breathing in a healthy person is ________.
A) loss of oxygen in tissues
B) alkalosis
C) increase of carbon dioxide
D) acidosis
The local matching of blood flow with ventilation is ________.
A) the Haldane effect
B) Chloride shifting
C) ventilation- perfusion coupling
D) the Bohr effect
In the plasma, the quantity of oxygen in solution is ________.
Page 4 of 53
EXAM | BIO 202 FINAL EXAM LATEST ACTUAL EXAM WITH
200 QUESTIONS AND CORRECT ANSWERS, 2025/2026 TEST
BANK - GRAND CANYON UNIVERSITY
The main site of gas exchange is the ________.
A) alveoli
B) respiratory bronchiole
C) alveolar duct
D) alveolar sacs
The loudness of a person's voice depends on the ________.
A) force with which air rushes across the vocal folds
B) strength of the intrinsic laryngeal muscles
C) length of the vocal folds
D) thickness of vestibular folds
The walls of the alveoli are composed of two types of cells, type I and type II. The
function of type II is to
________.
A) protect the lungs from bacterial invasion
B) secrete surfactant
C) replace mucus in the alveoli
D) trap dust and other debris
Page 1 of 53
,Complete the following statement using the choices below. Air moves out of the lungs
when the pressure inside the lungs is ________.
A) equal to the pressure in the atmosphere
B) greater than the pressure in the atmosphere
C) greater than the intra- alveolar pressure
D) less than the pressure in the atmosphere
Which of the following is true regarding normal quiet expiration of air?
A) It is a passive process that depends on the recoil of elastic fibers that were
stretched during inspiration.
B) It depends on the complete lack of surface tension on the alveolar wall.
C) It is driven by increased blood CO2 levels.
D) It requires contraction of abdominal wall muscles.
Which of the following maintains the patency (openness) of the trachea?
A) pseudostratified ciliated epithelium
B) Surface tension of water
C) C- shaped cartilage rings
D) surfactant production
Intrapulmonary pressure is the ________.
A) pressure within the alveoli of the lungs
B) negative pressure in the intrapleural space
C) pressure within the pleural cavity
Page 2 of 53
,D) difference between atmospheric pressure and respiratory pressure
The relationship between gas pressure and gas volume is described by ________.
A) Boyle's law
B) Henry's law
C) Dalton's law
D) Charles' law
The statement, "in a mixture of gases, the total pressure is the sum of the individual
partial pressures of gases
in the mixture" paraphrases ________.
A) Boyle's law
B) Charles' law
C) Dalton's law
D) Henry's law
Surfactant helps to prevent the alveoli from collapsing by ________.
A) warming the air before it enters
B) protecting the surface of alveoli from dehydration and other environmental variations
C) humidifying the air before it enters
D) Interfering with the cohesiveness of water molecules, thereby reducing the
surface tension of alveolar fluid
For gas exchange to be efficient, the respiratory membrane must be ________.
Page 3 of 53
, A) The thickness of the respiratory membrane is not important in the efficiency of gas
exchange.
B) Between 5 and 6 micrometers thick
C) 0.5 to 1 micrometer thick
D) At least 3 micrometers thick
With the Bohr effect, more oxygen is released because a(n) ________.
A) increase in pH (alkalosis) strengthens the hemoglobin- oxygen bond
B) decrease in pH (acidosis) strengthens the hemoglobin- oxygen bond
C) decrease in pH (acidosis) weakens the hemoglobin- oxygen bond
D) increase in pH (alkalosis) weakens the hemoglobin- oxygen bond
The most powerful respiratory stimulus for breathing in a healthy person is ________.
A) loss of oxygen in tissues
B) alkalosis
C) increase of carbon dioxide
D) acidosis
The local matching of blood flow with ventilation is ________.
A) the Haldane effect
B) Chloride shifting
C) ventilation- perfusion coupling
D) the Bohr effect
In the plasma, the quantity of oxygen in solution is ________.
Page 4 of 53
