Page 1 of 65
BIO 182 Exam 2 ACTUAL EXAM ALL 300 QUESTIONS
AND VERIFIED SOLUTIONS LATEST UPDATE THIS
YEAR
QUESTION: As fluid moves through a vessel, which factors determine the flow resistance?
(Select all that apply.)
A. the radius of the vessel
B. the pressure exerted by the heart
C. the length of the vessel
D. the viscosity of the fluid - ANSWER-A,C,D
QUESTION: In which of the following animals does blood flow directly from respiratory organs
to tissues without first returning to the heart?
A. fish
B. birds
C. amphibians
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D. reptiles
E. mammals - ANSWER-A
The respiratory system of which of the following organisms relies on air sacs to move air
through the lungs?
birds
mammals
fish
amphibians
reptiles - ANSWER-birds
QUESTION: Which of the following statements is true regarding respiration in mammals?
Select all that apply.
A. Air moves in a unidirectional fashion through the lungs.
B. Gas exchange occurs in the bronchioles.
C. Gas exchange occurs in the alveoli.
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D. Respiration depends on changes in air pressure in the chest cavity.
E. Respiration depends on contractions of the diaphragm. - ANSWER-C,D,E
QUESTION: Imagine that a young girl suffers a horseback-riding injury, and one of her ribs
punctures her diaphragm. How will this injury affect the girl's breathing?
A. The injury will make it easier to increase negative air pressure in her chest cavity, making
inhalation easier.
B. The injury will make it more difficult to increase negative air pressure in her chest cavity,
making inhalation more difficult.
C. The injury will make it more difficult to decrease negative air pressure in her chest cavity,
making inhalation more difficult.
D. The injury will not affect her at all, as intercostal muscles are responsible for breathing. -
ANSWER-B
QUESTION: Which of the following present challenges that make gas exchange more difficult
for fish than for terrestrial animals? Select all that apply.
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A. Water is denser and more viscous than air.
B. Water contains much less O2 than air per unit volume.
C. Gills have less surface area than lungs.
D. Unidirectional flow of water is less efficient than tidal ventilation.
E. Diffusion occurs more slowly in water than in air. - ANSWER-A,B,E
QUESTION: In a mammal's bloodstream, where would you expect to find oxygen? Select all that
apply.
A. dissolved in blood plasma
B. attached to the heme group of myoglobin in red blood cells
C. attached to the heme groups of hemoglobin in red blood cells
D. attached to the heme group of myosin in red blood cells
E. dissolved in hemolymph - ANSWER-A,C
QUESTION: If the partial pressure of oxygen (pO2) in a man's blood plasma decreased below
that in his red blood cells, what would be the result?
4
BIO 182 Exam 2 ACTUAL EXAM ALL 300 QUESTIONS
AND VERIFIED SOLUTIONS LATEST UPDATE THIS
YEAR
QUESTION: As fluid moves through a vessel, which factors determine the flow resistance?
(Select all that apply.)
A. the radius of the vessel
B. the pressure exerted by the heart
C. the length of the vessel
D. the viscosity of the fluid - ANSWER-A,C,D
QUESTION: In which of the following animals does blood flow directly from respiratory organs
to tissues without first returning to the heart?
A. fish
B. birds
C. amphibians
1
, Page 2 of 65
D. reptiles
E. mammals - ANSWER-A
The respiratory system of which of the following organisms relies on air sacs to move air
through the lungs?
birds
mammals
fish
amphibians
reptiles - ANSWER-birds
QUESTION: Which of the following statements is true regarding respiration in mammals?
Select all that apply.
A. Air moves in a unidirectional fashion through the lungs.
B. Gas exchange occurs in the bronchioles.
C. Gas exchange occurs in the alveoli.
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, Page 3 of 65
D. Respiration depends on changes in air pressure in the chest cavity.
E. Respiration depends on contractions of the diaphragm. - ANSWER-C,D,E
QUESTION: Imagine that a young girl suffers a horseback-riding injury, and one of her ribs
punctures her diaphragm. How will this injury affect the girl's breathing?
A. The injury will make it easier to increase negative air pressure in her chest cavity, making
inhalation easier.
B. The injury will make it more difficult to increase negative air pressure in her chest cavity,
making inhalation more difficult.
C. The injury will make it more difficult to decrease negative air pressure in her chest cavity,
making inhalation more difficult.
D. The injury will not affect her at all, as intercostal muscles are responsible for breathing. -
ANSWER-B
QUESTION: Which of the following present challenges that make gas exchange more difficult
for fish than for terrestrial animals? Select all that apply.
3
, Page 4 of 65
A. Water is denser and more viscous than air.
B. Water contains much less O2 than air per unit volume.
C. Gills have less surface area than lungs.
D. Unidirectional flow of water is less efficient than tidal ventilation.
E. Diffusion occurs more slowly in water than in air. - ANSWER-A,B,E
QUESTION: In a mammal's bloodstream, where would you expect to find oxygen? Select all that
apply.
A. dissolved in blood plasma
B. attached to the heme group of myoglobin in red blood cells
C. attached to the heme groups of hemoglobin in red blood cells
D. attached to the heme group of myosin in red blood cells
E. dissolved in hemolymph - ANSWER-A,C
QUESTION: If the partial pressure of oxygen (pO2) in a man's blood plasma decreased below
that in his red blood cells, what would be the result?
4
