A) 40 mm Hg
B) 100 mm Hg
C) 70 mm Hg
D) 104 mm Hg
E) 130 mm Hg
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Multiple Choice
A) 30 mm Hg
B) 100 mm Hg
C) 70 mm Hg
D) 104 mm Hg
E) 120 mm Hg
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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
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Multiple Choice
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.
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A) closed; open
B) open; closed
C) rigid; relaxed
D) relaxed; rigid
E) vibrating; closed
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Multiple Choice
A) pharynx
B) larynx
C) trachea
D) bronchiole
E) alveolus
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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
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Essay
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Multiple Choice
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
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Multiple Choice
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.
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Multiple Choice
A) pharynx
B) larynx
C) trachea
D) bronchiole
E) alveolus
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Multiple Choice
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
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Multiple Choice
A) two
B) four
C) six
D) eight
E) ten
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