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   Use the figure above to answer the following question. -What is the partial pressure of oxygen at the start of the systemic capillary beds? A)  40 mm Hg B)  100 mm Hg C)  70 mm Hg D)  104 mm Hg E)  130 mm Hg Use the figure above to answer the following question. -What is the partial pressure of oxygen at the start of the systemic capillary beds?


A) 40 mm Hg
B) 100 mm Hg
C) 70 mm Hg
D) 104 mm Hg
E) 130 mm Hg

F) B) and E)
G) A) and E)

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  -pharynx -pharynx

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  -Use the figure above to answer the following question. At what partial pressure of oxygen do half the heme groups in human blood have bound oxygen?​ A)  ​30 mm Hg B)  ​100 mm Hg C)  ​70 mm Hg D)  ​104 mm Hg E)  120 mm Hg​ -Use the figure above to answer the following question. At what partial pressure of oxygen do half the heme groups in human blood have bound oxygen?​


A) ​30 mm Hg
B) ​100 mm Hg
C) ​70 mm Hg
D) ​104 mm Hg
E) 120 mm Hg​

F) A) and E)
G) A) and B)

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Respond to the following statements with reference to the five components of respiratory systems listed below. Answers may be used more than once or not at all.​ -epiglottis


A) flexible windpipe reinforced with cartilage
B) surrounds each lung
C) oxygen-rich form of a respiratory protein
D) contains two true vocal cords
E) with the diaphragm, alter chest cavity volume
F) part of the brainstem; controls breathing
G) throat passage behind the mouth
H) inhalation and exhalation
I) connect trachea to lungs
J) flaplike structure that points upward allowing air to enter trachea, but blocks the larynx during swallowing
K) contraction increases thoracic volume
L) microscopically small pockets lined with moist epithelium

M) A) and H)
N) B) and E)

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If a person is choking, the __________ maneuver can be used to expel food from their trachea.

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Which of the following is true regarding some insect tracheal systems?


A) ​They are associated with the blood circulatory system.
B) They excrete body wastes as well as transport gases.
C) Their spiracles can become clogged by spraying them with oil.
D) The tracheal tubes are continually open in large terrestrial insects.
E) They contain respiratory pigments to enhance oxygen transport.

F) A) and E)
G) A) and D)

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  -pleural membrane -pleural membrane

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  -bronchus -bronchus

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  -epiglottis -epiglottis

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The glottis is ____ when swallowing and ____ when speaking.


A) ​closed; open
B) open; closed
C) rigid; relaxed
D) relaxed; rigid
E) vibrating; closed

F) B) and E)
G) A) and B)

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Respond to the following statements with reference to the five components of respiratory systems listed below. Answers may be used more than once or not at all.​ -oxyhemoglobin


A) ​pharynx
B) ​larynx
C) ​trachea
D) ​bronchiole
E) ​alveolus

F) None of the above
G) D) and E)

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What is characteristic of adult frogs?


A) ​gills
B) sucking air into their lungs
C) countercurrent exchange
D) pushing air into their lungs
E) drawing water by inhalation across their gills

F) B) and E)
G) B) and D)

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Which of the following have the most efficient lungs: amphibians, mammals or birds? Explain your answer.

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Amphibians have the simplest lung - it i...

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Carbon monoxide ____.


A) ​traps heat in the atmosphere
B) is an atmospheric pollutant
C) causes acid rain
D) interferes with the nervous system
E) binds to a hemoglobin molecule and interferes with oxygen uptake

F) A) and C)
G) B) and D)

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Which of the following is true regarding hemoglobin?


A) ​It is a lipid.
B) ​It contains iron.
C) It raises the concentration of oxygen in the blood.
D) It is present in all vertebrates and invertebrates.
E) It is identical to hemocyanin.

F) B) and D)
G) D) and E)

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  -trachea -trachea

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Respond to the following statements with reference to the five components of respiratory systems listed below. Answers may be used more than once or not at all.​ -pleural sac


A) ​pharynx
B) ​larynx
C) ​trachea
D) ​bronchiole
E) ​alveolus

F) B) and E)
G) A) and D)

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Chart the path of air from the atmosphere to the blood.

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Air would travel through the f...

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Integumentary exchange of gases implies that the animal ____.


A) ​has a shell
B) has a tracheal system
C) lives in a moist location
D) has a siphon
E) lives in an arid location​

F) B) and E)
G) C) and D)

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Non-smokers live about ____ years longer than smokers.


A) ​two
B) ​four
C) ​six
D) ​eight
E) ten​

F) A) and D)
G) All of the above

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