Question 1

The respiratory center is directly sensitive to the levels of H+. Could one correctly say that CO2 levels control the breathing rate? Explain your answer.

Accepted Answer

Answers may vary. Although the respirato...

Question 2

As food is swallowed it may come into contact with air in which of the following respiratory organs?

Accepted Answer

A)   bronchi
B)   trachea
C)   larynx
D)   pharynx
E)   nasal cavityF) A) and E)
G) C) and E)

Question 3

Which of the following disorder is not associated with the lower respiratory tract?

Accepted Answer

A)   Asthma
B)   Pneumonia
C)   Sinus infection
D)   Pulmonary tuberculosis
E)   EmphysemaF) A) and B)
G) C) and D)

Question 4

How is most carbon dioxide transported in the blood?

Accepted Answer

A)   as gas bubbles of CO2, just as in carbonated soft drinks
B)   as bicarbonate ions (HCO3) 
C)   on the free hemoglobins since they have lost their oxygen in the tissues
D)   as carbon monoxide
E)   as carbon compounds and oxygen radicalsF) C) and D)
G) A) and E)

Question 5

Oxygen is transported in blood most efficiently

Accepted Answer

A)   by being dissolved in the plasma.
B)   by chemical conversion to water.
C)   by combining with hemoglobin.
D)   by combining with carbon dioxide to form bicarbonate ions.
E)   as a free oxygen ion or radical.F) A) and E)
G) B) and C)

Question 6

Which organisms use negative pressure to move air into the lungs?

Accepted Answer

A)   ducks
B)   iguanas
C)   humans
D)   mice
E)   All of these use negative pressure to move air into their lungs.F) A) and B)
G) A) and E)

Question 7

There is unidirectional flow of air for greater absorption of oxygen in

Accepted Answer

A)   reptiles.
B)   amphibians.
C)   birds.
D)   mammals.E) B) and C)
F) A) and D)

Question 8

With negative pressure breathing, the muscles that move the ribs and diaphragm are distant from the absorptive alveolar surfaces. What difficulty(ies)  could occur if the muscles were around each alveolus and had to expand each alveolus to suck in air?

Accepted Answer

A)   Muscle tissue would get in the way of absorption of gases across the air-to-capillary border.
B)   Interspersed muscle tissue would take up much space and the lung-muscle volume would have to be much larger.
C)   Since muscle cells only contract and relax, it would be difficult for a few cells to cause alveolar expansion.
D)   Adding a third tissue to the intimate alveolar-capillary complex would increase the problems with disorders and diseases.
E)   All of the choices are correct.F) B) and C)
G) A) and D)

Question 9

Identify the correct pathway of an oxygen molecule as it goes from the nose to the alveolus.

Accepted Answer

A)   nostril, nasal cavity, pharynx, glottis, larynx, trachea, bronchus, bronchiole, alveoli
B)   nostril, nasal cavity, glottis, larynx, pharynx, trachea, bronchus, bronchiole, alveoli
C)   nostril, nasal cavity, larynx, glottis, pharynx, trachea, bronchus, bronchiole, alveoli
D)   nostril, nasal cavity, pharynx, glottis, larynx, trachea, bronchiole, bronchus, alveoliE) B) and C)
F) A) and B) A

Question 10

If a person overdosed on depressant-type drugs that slow down breathing, in what direction would the reaction shift? Explain your answer.

Accepted Answer

Slow, shallow breathing would shift the ...

Question 11

As food is swallowed it is prevented from coming into contact with air and entering the trachea by the

Accepted Answer

A)   pharynx.
B)   larynx.
C)   bronchioles.
D)   saliva.
E)   epiglottis.F) A) and E)
G) A) and D)

Question 12

The grasshopper is a terrestrial animal that uses its ________ in respiration.

Accepted Answer

A)   parapodia
B)   tracheae
C)   body surface
D)   gills
E)   lungsF) A) and B)
G) B) and E)

Question 13

In order to maximize diffusion across the surfaces of a gill, oxygen-rich water flows in the opposite direction of oxygen-poor blood. This concept is called

Accepted Answer

A)   reverse expiration.
B)   pneumonectomy.
C)   countercurrent flow.
D)   partial pressure saturation.
E)   hemoglobin saturation shift.F) A) and B)
G) C) and E)

Question 14

Explain how carbon dioxide is transported through the bloodstream?

Accepted Answer

Answers may vary. CO₂ enters the bloodstr...

Question 15

The earthworm is a terrestrial animal that uses its ________ in respiration.

Accepted Answer

A)   parapodia
B)   tracheoles
C)   body surface
D)   gills
E)   lungsF) D) and E)
G) A) and D) C

Question 16

Why are homes equipped with CO (carbon monoxide) detectors?

Accepted Answer

The incomplete combustion of natural gas and gasoline produces carbon monoxide. Because this gas is colorless and odorless, it may not be detected when emitted in a home heated with natural gas or from a car engine in a closed environment. Although not easily detected, carbon monoxide is quite deadly. It readily combines with the iron of hemoglobin, 200 times more so than oxygen. Death caused by carbon monoxide poisoning is actually death due to lack of oxygen in the body.

Question 17

Identify the correct pairing of respiratory disorders and symptoms.

Accepted Answer

A)   Common cold - sneezing, runny nose and a mild fever.
B)   Asthma - coughing, wheezing and shortness of breath.
C)   Pneumonia - bronchi are filled with fluid and pus causing coughing and difficulty breathing.
D)   Pulmonary tuberculosis - lung cells build tissues around the invading bacterium causing the elasticity of the lungs to decrease.
E)   All of the pairings of respiratory disorders and symptoms are correct.F) B) and E)
G) C) and D)

Question 18

Which lower respiratory tract disorder can be cured through the use of antibiotics that are effective against bacterial infections?

Accepted Answer

A)   Pneumonia
B)   Asthma
C)   Strep throat
D)   EmphysemaE) C) and D)
F) None of the above

Question 19

Ventilation includes

Accepted Answer

A)   inspiration.
B)   expiration.
C)   illumination.
D)   All of these are correct.
E)   Both inspiration and expiration.F) A) and E)
G) C) and D)

Question 20

Oxygen-poor blood becomes oxygen-rich blood in the capillary beds of the

Accepted Answer

A)   trachea.
B)   bronchi.
C)   bronchioles.
D)   alveoli.
E)   larynx.F) A) and C)
G) B) and C)

Exam 35: Respiratory Systems

The respiratory center is directly sensitive to the levels of H⁺. Could one correctly say that CO₂ levels control the breathing rate? Explain your answer.

Correct Answer
verified
Answers may vary. Although the respirato...
View Answer

As food is swallowed it may come into contact with air in which of the following respiratory organs?

Correct Answer
verified

Which of the following disorder is not associated with the lower respiratory tract?

Correct Answer
verified

How is most carbon dioxide transported in the blood?

Correct Answer
verified

Oxygen is transported in blood most efficiently

Correct Answer
verified

Which organisms use negative pressure to move air into the lungs?

Correct Answer
verified

There is unidirectional flow of air for greater absorption of oxygen in

Correct Answer
verified

With negative pressure breathing, the muscles that move the ribs and diaphragm are distant from the absorptive alveolar surfaces. What difficulty(ies) could occur if the muscles were around each alveolus and had to expand each alveolus to suck in air?

Correct Answer
verified

Identify the correct pathway of an oxygen molecule as it goes from the nose to the alveolus.

Correct Answer
verified
A

If a person overdosed on depressant-type drugs that slow down breathing, in what direction would the reaction shift? Explain your answer.

Correct Answer
verified
Slow, shallow breathing would shift the ...
View Answer

As food is swallowed it is prevented from coming into contact with air and entering the trachea by the

Correct Answer
verified

The grasshopper is a terrestrial animal that uses its ________ in respiration.

Correct Answer
verified

In order to maximize diffusion across the surfaces of a gill, oxygen-rich water flows in the opposite direction of oxygen-poor blood. This concept is called

Correct Answer
verified

Explain how carbon dioxide is transported through the bloodstream?

Correct Answer
verified
Answers may vary. CO₂ enters the bloodstr...
View Answer

The earthworm is a terrestrial animal that uses its ________ in respiration.

Correct Answer
verified
C

Why are homes equipped with CO (carbon monoxide) detectors?

Identify the correct pairing of respiratory disorders and symptoms.

Correct Answer
verified

Which lower respiratory tract disorder can be cured through the use of antibiotics that are effective against bacterial infections?

Correct Answer
verified

Ventilation includes

Correct Answer
verified

Oxygen-poor blood becomes oxygen-rich blood in the capillary beds of the

Correct Answer
verified

Exam 35: Respiratory Systems

The respiratory center is directly sensitive to the levels of H+. Could one correctly say that CO2 levels control the breathing rate? Explain your answer.

Correct AnswerverifiedAnswers may vary. Although the respirato...View AnswerShow Answer

As food is swallowed it may come into contact with air in which of the following respiratory organs?

Correct AnswerverifiedShow Answer

Which of the following disorder is not associated with the lower respiratory tract?

Correct AnswerverifiedShow Answer

How is most carbon dioxide transported in the blood?

Correct AnswerverifiedShow Answer

Oxygen is transported in blood most efficiently

Correct AnswerverifiedShow Answer

Which organisms use negative pressure to move air into the lungs?

Correct AnswerverifiedShow Answer

There is unidirectional flow of air for greater absorption of oxygen in

Correct AnswerverifiedShow Answer

With negative pressure breathing, the muscles that move the ribs and diaphragm are distant from the absorptive alveolar surfaces. What difficulty(ies) could occur if the muscles were around each alveolus and had to expand each alveolus to suck in air?

Correct AnswerverifiedShow Answer

Identify the correct pathway of an oxygen molecule as it goes from the nose to the alveolus.

Correct AnswerverifiedA

If a person overdosed on depressant-type drugs that slow down breathing, in what direction would the reaction shift? Explain your answer.

Correct AnswerverifiedSlow, shallow breathing would shift the ...View AnswerShow Answer

As food is swallowed it is prevented from coming into contact with air and entering the trachea by the

Correct AnswerverifiedShow Answer

The grasshopper is a terrestrial animal that uses its ________ in respiration.

Correct AnswerverifiedShow Answer

In order to maximize diffusion across the surfaces of a gill, oxygen-rich water flows in the opposite direction of oxygen-poor blood. This concept is called

Correct AnswerverifiedShow Answer

Explain how carbon dioxide is transported through the bloodstream?

Correct AnswerverifiedAnswers may vary. CO2 enters the bloodstr...View AnswerShow Answer

The earthworm is a terrestrial animal that uses its ________ in respiration.

Correct AnswerverifiedC

Why are homes equipped with CO (carbon monoxide) detectors?

Identify the correct pairing of respiratory disorders and symptoms.

Correct AnswerverifiedShow Answer

Which lower respiratory tract disorder can be cured through the use of antibiotics that are effective against bacterial infections?

Correct AnswerverifiedShow Answer

Ventilation includes

Correct AnswerverifiedShow Answer

Oxygen-poor blood becomes oxygen-rich blood in the capillary beds of the

Correct AnswerverifiedShow Answer

The respiratory center is directly sensitive to the levels of H⁺. Could one correctly say that CO₂ levels control the breathing rate? Explain your answer.

Correct Answer
verified
Answers may vary. Although the respirato...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified
Slow, shallow breathing would shift the ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Answers may vary. CO₂ enters the bloodstr...
View Answer

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified