Exam Questions:
2) Which is a correct statement concerning the insect circulatory system?
A) The circulating fluid bathes tissues directly.
B) Blood is always contained in a system of tubes called tracheae.
C) Blood transports oxygen and nutrients to all the tissues.
D) There is no heart, or pump.
E) There is no blood, or circulating fluid.
Answer: A
Topic: Concept 42.1
Skill: Comprehension
3) Organisms in which a circulating body fluid is distinct from the fluid that directly surrounds the body's
cells are likely to have
A) an open circulatory system.
B) a closed circulatory system.
C) a gastrovascular cavity.
D) branched tracheae.
E) hemolymph.
Answer: B
Topic: Concept 42.1
Skill: Comprehension
7) Which of the following are the only vertebrates in which blood flows directly from respiratory organs to
body tissues without first returning to the heart?
A) amphibians
B) birds
C) fishes
D) mammals
E) reptiles
Answer: C
Topic: Concepts 42.1, 42.2
Skill: Comprehension
9) A human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb.
From this point in the artery, how many capillary beds must this red blood cell pass through before it
returns to the left ventricle of the heart?
A) one
B) two
C) three
D) four
E) five
Answer: B
Topic: Concept 42.2
Skill: Application
,11) Chambers or vessels that carry oxygenated blood include which of the following?
A) 1 and 2 only
B) 3 and 4 only
C) 5 and 6 only
D) 1, 2, and 4
E) 3, 5, and 6
Answer: E
Topic: Concept 42.2
Skill: Knowledge
12) Blood is carried directly to the lungs from which of the following?
A) 2
B) 3
C) 4
D) 5
E) 6
Answer: C
Topic: Concept 42.2
Skill: Knowledge
13) What is the correct sequence of blood flow, beginning at the pulmonary artery?
A) 2-1-4-systemic circulation-3-5-6
B) 3-5-6-systemic circulation-2-1-4
C) 4-5-6-3-systemic circulation-2-1
D) 4-systemic circulation-2-1-6-3-5
E) 5-6-3-2-1-4
Answer: C
Topic: Concepts 42.1, 42.2
Skill: Knowledge
^^KNOW HOW THE CIRCULATORY SYSTEM AND THE HEART FLOW^^
20) Why is the velocity of blood flow the lowest in capillaries?
A) The capillary walls are not thin enough to allow oxygen to exchange with the cells.
B) Capillaries are far from the heart, and blood flow slows as distance from the heart increases.
C) The diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate.
D) The systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the
right ventricle.
E) The total surface area of the capillaries is larger than the total surface area of the arterioles.
Answer: E
Topic: Concept 42.3
Skill: Comprehension
, 24) What is the reason that fluid is forced out of systemic capillaries at the arteriole end?
A) The osmotic pressure of the interstitial fluid is greater than that of the blood.
B) The hydrostatic pressure of the blood is less than that of the interstitial fluid.
C) The hydrostatic pressure of the blood is greater than the osmotic pressure of the blood.
D) The osmotic pressure of the interstitial fluid is greater than the hydrostatic pressure of the blood.
E) The osmotic pressure of the blood is greater than the hydrostatic pressure of the interstitial fluid.
Answer: C
Topic: Concept 42.3
Skill: Comprehension
^^ ASKS SOMETHING ABOUT WHAT IS TRUE AT THE ARTERIOLE END OF THE CAPILLARIES:^^
35) The meshwork that forms the fabric of a blood clot consists mostly of which protein?
A) fibrinogen
B) fibrin
C) thrombin
D) prothrombin
E) collagen
Answer: B
Topic: Concept 42.4
Skill: Knowledge
42) Which of the following is an example of countercurrent exchange?
A) the flow of water across the gills of a fish and that of blood within those gills
B) the flow of blood in the dorsal vessel of an insect and that of air within its tracheae
C) the flow of air within the primary bronchi of a human and that of blood within the pulmonary veins
D) the flow of water across the skin of a frog and that of blood within the ventricle of its heart
E) the flow of fluid out of the arterial end of a capillary and that of fluid back into the venous end of the
same capillary
Answer: A
Topic: Concept 42.5
Skill: Comprehension
45) Tracheal systems for gas exchange are found in which organism?
A) crustacean
B) earthworm
C) insect
D) jellyfish
E) vertebrate
Answer: C
Topic: Concept 42.5
Skill: Knowledge
49) If a molecule of CO2 released into the blood in your left toe travels out of your nose, it must pass
through all of the following structures except the
A) right atrium.
B) pulmonary vein.
C) alveolus.
D) trachea.
E) right ventricle.
Answer: B
Topic: Concepts 42.2, 42.6
Skill: Application
2) Which is a correct statement concerning the insect circulatory system?
A) The circulating fluid bathes tissues directly.
B) Blood is always contained in a system of tubes called tracheae.
C) Blood transports oxygen and nutrients to all the tissues.
D) There is no heart, or pump.
E) There is no blood, or circulating fluid.
Answer: A
Topic: Concept 42.1
Skill: Comprehension
3) Organisms in which a circulating body fluid is distinct from the fluid that directly surrounds the body's
cells are likely to have
A) an open circulatory system.
B) a closed circulatory system.
C) a gastrovascular cavity.
D) branched tracheae.
E) hemolymph.
Answer: B
Topic: Concept 42.1
Skill: Comprehension
7) Which of the following are the only vertebrates in which blood flows directly from respiratory organs to
body tissues without first returning to the heart?
A) amphibians
B) birds
C) fishes
D) mammals
E) reptiles
Answer: C
Topic: Concepts 42.1, 42.2
Skill: Comprehension
9) A human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb.
From this point in the artery, how many capillary beds must this red blood cell pass through before it
returns to the left ventricle of the heart?
A) one
B) two
C) three
D) four
E) five
Answer: B
Topic: Concept 42.2
Skill: Application
,11) Chambers or vessels that carry oxygenated blood include which of the following?
A) 1 and 2 only
B) 3 and 4 only
C) 5 and 6 only
D) 1, 2, and 4
E) 3, 5, and 6
Answer: E
Topic: Concept 42.2
Skill: Knowledge
12) Blood is carried directly to the lungs from which of the following?
A) 2
B) 3
C) 4
D) 5
E) 6
Answer: C
Topic: Concept 42.2
Skill: Knowledge
13) What is the correct sequence of blood flow, beginning at the pulmonary artery?
A) 2-1-4-systemic circulation-3-5-6
B) 3-5-6-systemic circulation-2-1-4
C) 4-5-6-3-systemic circulation-2-1
D) 4-systemic circulation-2-1-6-3-5
E) 5-6-3-2-1-4
Answer: C
Topic: Concepts 42.1, 42.2
Skill: Knowledge
^^KNOW HOW THE CIRCULATORY SYSTEM AND THE HEART FLOW^^
20) Why is the velocity of blood flow the lowest in capillaries?
A) The capillary walls are not thin enough to allow oxygen to exchange with the cells.
B) Capillaries are far from the heart, and blood flow slows as distance from the heart increases.
C) The diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate.
D) The systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the
right ventricle.
E) The total surface area of the capillaries is larger than the total surface area of the arterioles.
Answer: E
Topic: Concept 42.3
Skill: Comprehension
, 24) What is the reason that fluid is forced out of systemic capillaries at the arteriole end?
A) The osmotic pressure of the interstitial fluid is greater than that of the blood.
B) The hydrostatic pressure of the blood is less than that of the interstitial fluid.
C) The hydrostatic pressure of the blood is greater than the osmotic pressure of the blood.
D) The osmotic pressure of the interstitial fluid is greater than the hydrostatic pressure of the blood.
E) The osmotic pressure of the blood is greater than the hydrostatic pressure of the interstitial fluid.
Answer: C
Topic: Concept 42.3
Skill: Comprehension
^^ ASKS SOMETHING ABOUT WHAT IS TRUE AT THE ARTERIOLE END OF THE CAPILLARIES:^^
35) The meshwork that forms the fabric of a blood clot consists mostly of which protein?
A) fibrinogen
B) fibrin
C) thrombin
D) prothrombin
E) collagen
Answer: B
Topic: Concept 42.4
Skill: Knowledge
42) Which of the following is an example of countercurrent exchange?
A) the flow of water across the gills of a fish and that of blood within those gills
B) the flow of blood in the dorsal vessel of an insect and that of air within its tracheae
C) the flow of air within the primary bronchi of a human and that of blood within the pulmonary veins
D) the flow of water across the skin of a frog and that of blood within the ventricle of its heart
E) the flow of fluid out of the arterial end of a capillary and that of fluid back into the venous end of the
same capillary
Answer: A
Topic: Concept 42.5
Skill: Comprehension
45) Tracheal systems for gas exchange are found in which organism?
A) crustacean
B) earthworm
C) insect
D) jellyfish
E) vertebrate
Answer: C
Topic: Concept 42.5
Skill: Knowledge
49) If a molecule of CO2 released into the blood in your left toe travels out of your nose, it must pass
through all of the following structures except the
A) right atrium.
B) pulmonary vein.
C) alveolus.
D) trachea.
E) right ventricle.
Answer: B
Topic: Concepts 42.2, 42.6
Skill: Application
