Question 1

How are internal and external respiration alike?

Accepted Answer

A)   Both involve an exchange of gases.
B)   Both involve carbon dioxide diffusing into the lungs.
C)   Both involve oxygen diffusing into the lungs.
D)   Both involve carbon dioxide diffusing into the body's tissues.
E)   Both involve oxygen diffusing into the body's tissues.F) B) and E)
G) None of the above

Question 2

If it were not for the nasal cavity,

Accepted Answer

A)   we would not be able to speak.
B)   more debris would enter the lungs.
C)   oxygen would not be exchanged in the alveoli.
D)   food would go down the wrong pipe.
E)   air would not be conducted to the lungs.F) B) and D)
G) All of the above

Question 3

What do inspiration and expiration have in common?

Accepted Answer

A)   They both use the same pathways.
B)   The air travels in the same direction in both.
C)   They both end in the lungs.
D)   They both conduct air from the outside.
E)   They both remove wastes from the tissues.F) A) and B)
G) D) and E)

Question 4

Which of the following is not a lower respiratory infection?

Accepted Answer

A)   tuberculosis
B)   pneumonia
C)   bronchitis
D)   pulmonary fibrosis
E)   pulmonary tuberculosisF) B) and C)
G) C) and E)

Question 5

Which structure is the initial entry way for air to enter the respiratory system?

Accepted Answer

A)   nose
B)   trachea
C)   lungs
D)   pharynx
E)   esophagusF) D) and E)
G) None of the above

Question 6

How does breathing at a very low rate affect the reaction H+ + HCO3-  →\rightarrow→  H2CO3  →\rightarrow→  H2O + CO2 ?

Accepted Answer

A)   pushes it to the right.
B)   pushes it to the left.
C)   does not affect it.
D)   increases the rate at which it occurs.
E)   decreases the rate at which it occurs. F) All of the above
G) A) and E)

Question 7

Inhalation is another word for inspiration.

Accepted Answer

A) True 
 B)False

Question 8

The epiglottis is the slit between the vocal cords.

Accepted Answer

A) True 
 B)False

Question 9

The vital capacity is equal to the

Accepted Answer

A)   maximum amount of air breathed in.
B)   maximum amount of air breathed out.
C)   maximum amount of air breathed in and the maximum amount of air breathed out.
D)   the air left in the lungs after exhalation.
E)   the air that comes in during a normal breath.F) None of the above
G) All of the above

Question 10

"Strep throat" is caused by what type of infecting organism?

Accepted Answer

A)   bacteria
B)   virus
C)   fungus
D)   parasitic worm
E)   protistF) A) and E)
G) B) and E)

Question 11

Which of the following infections does not affect a structure in the respiratory tract?

Accepted Answer

A)   laryngitis
B)   strep throat
C)   tonsilitis
D)   otitis media
E)   bronchitisF) All of the above
G) A) and D)

Question 12

Carotid bodies and aortic bodies detect

Accepted Answer

A)   blood pH.
B)   oxygen blood levels.
C)   oxygen tissue levels.
D)   stretching of the lungs.
E)   the residual volume.F) D) and E)
G) A) and B)

Question 13

The difference between a restrictive pulmonary disorder and an obstructive pulmonary disorder is that in the restrictive disorder the lungs have lost their elasticity and in an obstructive disorder air does not flow freely in the airways.

Accepted Answer

A) True 
 B)False

Question 14

Carbonic anhydrase and carbaminohemoglobin are similar in that they are both enzymes involved in respiration.

Accepted Answer

A) True 
 B)False

Question 15

When the pH of the blood becomes more acidic, the respiratory center

Accepted Answer

A)   increases the rate and increases the depth of breathing.
B)   increases the rate and decreases the depth of breathing.
C)   decreases the rate and increases the depth of breathing.
D)   decreases the rate and decreases the depth of breathing.
E)   stops breathing all together.F) C) and E)
G) D) and E)

Question 16

Which reaction does carbonic anhydrase catalyze?

Accepted Answer

A)   H+ + HCO3-  →\rightarrow→  H2CO3
B)   H2CO3  →\rightarrow→  H2O + CO2
C)   Hb + O2  →\rightarrow→  HbO2
D)   HbO2  →\rightarrow→  Hb + O2
E)   None of these. F) All of the above
G) C) and D)

Question 17

What is the correct order of the following steps in the progression of lung cancer in a smoker? 1. Cilia are lost. 2. There is a thickening and callusing of the cells lining the bronchi. 3. Metastasis occurs. 4. A tumor forms. 5. Cells with atypical nuclei appear.

Accepted Answer

A)   1,2,3,4,5
B)   2,1,5,4,3
C)   5,1,2,3,4
D)   1,2,4,3,5
E)   2,1,4,5,3F) All of the above
G) A) and C)

Question 18

Which of the following is not a symptom of emphysema?

Accepted Answer

A)   The elastic recoil of the lungs is reduced.
B)   The surface area for gas exchange is reduced.
C)   The alveoli are distended and their walls damaged.
D)   The airways are inflamed and filled with mucus.
E)   The heart works harder to force more blood through the lungs.F) None of the above
G) B) and D)

Question 19

The total cross sectional area of the alveoli is about the size of a textbook.

Accepted Answer

A) True 
 B)False

Question 20

Lung cancer, just like breast cancer, is more prevalent in women than in men.

Accepted Answer

A) True 
 B)False

Exam 9: Respiratory System

The epiglottis is the slit between the vocal cords.

Correct AnswerverifiedShow Answer

When the pH of the blood becomes more acidic, the respiratory center

Correct AnswerverifiedShow Answer

How does breathing at a very low rate affect the reaction H+ + HCO3- →\rightarrow→ H2CO3 →\rightarrow→ H2O + CO2 ?

Correct AnswerverifiedShow Answer

Carotid bodies and aortic bodies detect

Correct AnswerverifiedShow Answer

What do inspiration and expiration have in common?

Correct AnswerverifiedShow Answer

The difference between a restrictive pulmonary disorder and an obstructive pulmonary disorder is that in the restrictive disorder the lungs have lost their elasticity and in an obstructive disorder air does not flow freely in the airways.

Correct AnswerverifiedShow Answer

How are internal and external respiration alike?

Correct AnswerverifiedShow Answer

Inhalation is another word for inspiration.

Correct AnswerverifiedShow Answer

Which of the following infections does not affect a structure in the respiratory tract?

Correct AnswerverifiedShow Answer

The total cross sectional area of the alveoli is about the size of a textbook.

Correct AnswerverifiedShow Answer

"Strep throat" is caused by what type of infecting organism?

Correct AnswerverifiedShow Answer

Which reaction does carbonic anhydrase catalyze?

Correct AnswerverifiedShow Answer

Carbonic anhydrase and carbaminohemoglobin are similar in that they are both enzymes involved in respiration.

Correct AnswerverifiedShow Answer

If it were not for the nasal cavity,

Correct AnswerverifiedShow Answer

What is the correct order of the following steps in the progression of lung cancer in a smoker? 1. Cilia are lost. 2. There is a thickening and callusing of the cells lining the bronchi. 3. Metastasis occurs. 4. A tumor forms. 5. Cells with atypical nuclei appear.

Correct AnswerverifiedShow Answer

Which of the following is not a symptom of emphysema?

Correct AnswerverifiedShow Answer

The vital capacity is equal to the

Correct AnswerverifiedShow Answer

Which structure is the initial entry way for air to enter the respiratory system?

Correct AnswerverifiedShow Answer

Which of the following is not a lower respiratory infection?

Correct AnswerverifiedShow Answer

Lung cancer, just like breast cancer, is more prevalent in women than in men.

Correct AnswerverifiedShow Answer

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How does breathing at a very low rate affect the reaction H⁺ + HCO₃^- $\rightarrow$ H₂CO₃ $\rightarrow$ H₂O + CO₂ ?

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