Question 1

The pH of blood is usually maintained at about:

Accepted Answer

A)  5.2
B)  6.4
C)  6.8
D)  7.4
E)  8.6F) A) and E)
G) B) and D)

Question 2

Which of the following is not a main function of the respiratory system?

Accepted Answer

A)  Olfaction
B)  Gas exchange between the lungs and the atmosphere
C)  Production of sounds
D)  Transport of oxygen to the cells of the body
E)  Maintaining blood pH homeostasisF) C) and D)
G) A) and B)

Question 3

Bacteria trapped in mucus in the lower respiratory tract are literally swept up and out of the lower respiratory tract by waving _____________.

Accepted Answer

A)  Flagella
B)  Pili
C)  Cilia
D)  Fimbria
E)  LamellaF) A) and B)
G) A) and C)

Question 4

The first breath of a newborn takes no more strength than subsequent breaths.

Accepted Answer

A) True 
 B)False  True

Question 5

In a bird,deoxygenated air moves from the lungs into the _____________________ before the air is expelled.

Accepted Answer

A)  Anterior air sacs
B)  Lamellae of the gills
C)  Posterior air sacs
D)  Bronchioles
E)  CapillariesF) A) and C)
G) B) and D)

Question 6

Hemoglobin has a greater affinity for carbon monoxide than oxygen.Which of the following would you predict to be a symptom of carbon monoxide poisoning?

Accepted Answer

A)  Hyperactivity.
B)  Increased blood pH.
C)  Decreased exhalation of oxygen.
D)  Increased heart rate.
E)  Decreased ATP production.F) None of the above
G) A) and C)

Question 7

The atmospheric gas that is in the highest concentration in inhaled air at sea level is oxygen.

Accepted Answer

A) True 
 B)False  False

Question 8

Why are gills only found in aquatic animals?

Accepted Answer

A)  There isn't enough oxygen in air for them to absorb
B)  Gasses can only diffuse in water
C)  Capillaries can only exchange gas with alveoli, not gills
D)  They dry up when exposed to air
E)  Aquatic animals do not transport oxygen on red blood cellsF) A) and D)
G) B) and E)

Question 9

In the systemic circulation,the oxygen poor blood travels from the heart to the capillaries surrounding the alveoli,expels carbon dioxide,and picks up oxygen.

Accepted Answer

A) True 
 B)False  True

Question 10

Which of the following respiratory diseases can be caused by a bacterial infection?

Accepted Answer

A)  The common cold
B)  Tuberculosis
C)  Pneumonia
D)  Tuberculosis and pneumonia
E)  The common cold and tuberculosisF) B) and E)
G) B) and D)

Question 11

Which of the following is not a disease of the respiratory system?

Accepted Answer

A)  Apnea
B)  Tuberculosis
C)  Rheumatoid arthritis
D)  Cystic fibrosis
E)  AsthmaF) D) and E)
G) A) and D)

Question 12

The hormone erythropoietin (EPO) stimulates the production of red blood cells.What effect would this have on transport of oxygen and carbon dioxide?

Accepted Answer

A)  Oxygen transport would increase, carbon dioxide transport would not be affected much
B)  Oxygen transport would decrease, carbon dioxide transport would not be affected much
C)  Oxygen and carbon dioxide transport would both increase
D)  Oxygen transport would decrease, carbon dioxide transport would increase
E)  Oxygen transport would increase, carbon dioxide transport would decreaseF) A) and D)
G) None of the above

Question 13

A respiratory disease caused by long-term exposure to irritants such as cigarette smoke that causes the walls of the alveoli to tear,thereby reducing the surface area for gas exchange is:

Accepted Answer

A)  Cystic fibrosis
B)  Asthma
C)  Emphysema
D)  Apnea
E)  TuberculosisF) B) and D)
G) B) and E)

Question 14

Which of the following animals can obtain the oxygen they need by diffusion of oxygen across the surface of their body?

Accepted Answer

A)  Fish and Flatworms
B)  Fish
C)  Flatworms
D)  Sea anemones
E)  Sea anemones and earthwormsF) A) and C)
G) None of the above

Question 15

In the pulmonary circulation arteries deliver freshly oxygenated blood to all the body's tissues.

Accepted Answer

A) True 
 B)False

Question 16

Why couldn't a human absorb enough oxygen through their skin like sea anemones are able to?

Accepted Answer

A)  Our surface area to volume is too high for oxygen to reach all tissues
B)  Sea anemones live in water, and there is more oxygen available
C)  Our surface area to volume is too low for oxygen to reach all tissues
D)  Our capillaries do not come close enough to the skin to absorb oxygen
E)  Sea anemones have a larger heart relative to the rest of their bodyF) A) and E)
G) B) and E)

Question 17

Smoking is known to block the movement of cilia in the bronchi.Which of the following would you expect to find in the airways of a smoker?

Accepted Answer

A)  More bacteria
B)  Less mucus
C)  More cilia
D)  More cilia and less mucus
E)  More bacteria and mucusF) A) and E)
G) B) and E)

Question 18

The lower respiratory tract consists of:

Accepted Answer

A)  The pharynx and lungs
B)  The larynx and lungs
C)  The larynx, trachea, and lungs
D)  The trachea and lungs
E)  The pharynx, trachea, and lungsF) B) and E)
G) A) and D)

Question 19

figure 30.15 
-What is the dependent variable in figure 30.15?

Accepted Answer

A)  Time
B)  Partial pressure of oxygen in the tracheae
C)  The external concentration of oxygen
D)  The number of moth pupae
E)  The size of each moth pupaF) B) and C)
G) A) and C)

Question 20

Blood transports the most carbon dioxide by which of the following?

Accepted Answer

A)  As bicarbonate ions
B)  In red blood cells
C)  Dissolved in the plasma
D)  Bound to hemoglobin
E)  Bound to myoglobinF) None of the above
G) A) and B)

Exam 30: The Respiratory System

The pH of blood is usually maintained at about:

Correct AnswerverifiedShow Answer

Which of the following is not a main function of the respiratory system?

Correct AnswerverifiedShow Answer

Bacteria trapped in mucus in the lower respiratory tract are literally swept up and out of the lower respiratory tract by waving _____________.

Correct AnswerverifiedShow Answer

The first breath of a newborn takes no more strength than subsequent breaths.

Correct AnswerverifiedTrue

In a bird,deoxygenated air moves from the lungs into the _____________________ before the air is expelled.

Correct AnswerverifiedShow Answer

Hemoglobin has a greater affinity for carbon monoxide than oxygen.Which of the following would you predict to be a symptom of carbon monoxide poisoning?

Correct AnswerverifiedShow Answer

The atmospheric gas that is in the highest concentration in inhaled air at sea level is oxygen.

Correct AnswerverifiedFalse

Why are gills only found in aquatic animals?

Correct AnswerverifiedShow Answer

In the systemic circulation,the oxygen poor blood travels from the heart to the capillaries surrounding the alveoli,expels carbon dioxide,and picks up oxygen.

Correct AnswerverifiedTrue

Which of the following respiratory diseases can be caused by a bacterial infection?

Correct AnswerverifiedShow Answer

Which of the following is not a disease of the respiratory system?

Correct AnswerverifiedShow Answer

The hormone erythropoietin (EPO) stimulates the production of red blood cells.What effect would this have on transport of oxygen and carbon dioxide?

Correct AnswerverifiedShow Answer

A respiratory disease caused by long-term exposure to irritants such as cigarette smoke that causes the walls of the alveoli to tear,thereby reducing the surface area for gas exchange is:

Correct AnswerverifiedShow Answer

Which of the following animals can obtain the oxygen they need by diffusion of oxygen across the surface of their body?

Correct AnswerverifiedShow Answer

In the pulmonary circulation arteries deliver freshly oxygenated blood to all the body's tissues.

Correct AnswerverifiedShow Answer

Why couldn't a human absorb enough oxygen through their skin like sea anemones are able to?

Correct AnswerverifiedShow Answer

Smoking is known to block the movement of cilia in the bronchi.Which of the following would you expect to find in the airways of a smoker?

Correct AnswerverifiedShow Answer

The lower respiratory tract consists of:

Correct AnswerverifiedShow Answer

figure 30.15 -What is the dependent variable in figure 30.15?

Correct AnswerverifiedShow Answer

Blood transports the most carbon dioxide by which of the following?

Correct AnswerverifiedShow Answer

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