Question 1

Place the following terms in the correct order from which an oxygen molecule in blood travels from the heart to a muscle cell in the arm where ATP will be made for the arm to lift an object.

Accepted Answer

A)  heart,arteries,arterioles,capillaries,interstitial fluid
B)  capillaries,venules,veins,heart
C)  heart,capillaries,venules,veins
D)  heart,capillaries,arterioles,arteries,interstitial fluid
E)  heart,capillaries,arterioles,arteries,alveoliF) C) and D)
G) B) and E)

Question 2

The chambers of the heart that push blood to the lungs or body are the ventricles.

Accepted Answer

A) True 
 B)False

Question 3

The hormone erythropoietin (EPO) stimulates the production of red blood cells.What effect would this have on transport of oxygen and carbon dioxide?

Accepted Answer

A)  Oxygen transport would increase,carbon dioxide transport would not be affected much.
B)  Oxygen transport would decrease,carbon dioxide transport would not be affected much.
C)  Oxygen and carbon dioxide transport would both increase.
D)  Oxygen transport would decrease,carbon dioxide transport would increase.
E)  Oxygen transport would increase,carbon dioxide transport would decreasE.F) A) and B)
G) B) and E)

Question 4

If you exercised more and more intensely over two months,your resting heart rate would decrease.

Accepted Answer

A) True 
 B)False

Question 5

The most important signal that the brain uses to set the breathing rate is the level of blood

Accepted Answer

A)  nitrogen.
B)  oxygen.
C)  carbon dioxide.
D)  sulfur.
E)  hemoglobin.F) None of the above
G) D) and E)

Question 6

A heart murmur is caused by

Accepted Answer

A)  a greater-than-normal force of contraction of the right atrium.
B)  a constriction of the pulmonary artery.
C)  blockage of the aorta.
D)  the heart valves not functioning properly.
E)  a greater-than-normal force of contraction of the left atrium.F) B) and C)
G) B) and E)

Question 7

The concentration of oxygen is decreased at high altitude.Why would this make it harder for a person to get enough oxygen into their blood?

Accepted Answer

A)  Hemoglobin cannot bind oxygen well at low concentrations.
B)  The concentration gradient from the alveoli to the blood decreases.
C)  People are working harder at high altitude and have higher demands for oxygen.
D)  The concentration of oxygen in the blood is too low for diffusion into tissues.
E)  The heart cannot obtain enough energy to pump oxygen into the blood from the alveoli.F) D) and E)
G) B) and C)

Question 8

Capillary beds are networks of capillaries that connect arterioles and venules.

Accepted Answer

A) True 
 B)False

Question 9

ATP is required by cells to provide power for

Accepted Answer

A)  DNA replication.
B)  movement.
C)  production of proteins.
D)  growth.
E)  All answers are correct.F) A) and E)
G) C) and D)

Question 10

The liquid matrix of blood is

Accepted Answer

A)  interstitial fluid.
B)  water.
C)  cytosol.
D)  plasma.
E)  lymph.F) A) and B)
G) C) and E)

Question 11

A defibrillator contains two paddles that are placed on a person's chest and through which an electrical shock is administered.What is this procedure treating?

Accepted Answer

A)  aneurysm
B)  heart attack due to atherosclerosis
C)  anemia
D)  tachycardia
E)  arrhythmiaF) B) and C)
G) B) and D)

Question 12

If a bird can mimic human speech,it can mimic the action of what organ?

Accepted Answer

A)  pharynx
B)  larynx
C)  trachea
D)  glottis
E)  uvulaF) A) and D)
G) C) and E) B

Question 13

The large vessels of the circulatory system that carry blood away from the heart are

Accepted Answer

A)  veins.
B)  capillaries.
C)  arteries.
D)  lymph vessels.
E)  sieve tubes.F) A) and B)
G) A) and D) C

Question 14

A dual-chamber pacemaker is surgically placed in a patient's chest.Wires then carry pulses to the right atrium and the right ventricle.How would the pulses be directed from the pacemaker to the heart?

Accepted Answer

A)  Only the ventricle would be stimulated.
B)  The ventricle would be stimulated first and then the atrium.
C)  Both the atrium and ventricle would be stimulated simultaneously.
D)  Only the atrium would be stimulateD.
E)  The atrium would be stimulated first and then the ventriclE.F) A) and B)
G) A) and C)

Question 15

The walls of the right ventricle are thicker than those of the left ventricle.

Accepted Answer

A) True 
 B)False

Question 16

The small vessels from which water and dissolved substances diffuse between the blood and interstitial fluid are

Accepted Answer

A)  arteries.
B)  veins.
C)  lymph vessels.
D)  capillaries.
E)  sieve tubes.F) C) and D)
G) None of the above

Question 17

If you exercised more and more intensely over two months,your heart would be able to pump out more and more blood with each stroke.

Accepted Answer

A) True 
 B)False

Question 18

The two largest veins of the body that deliver blood to the right atrium are the

Accepted Answer

A)  pulmonary vein and inferior vena cavA.
B)  superior vena cava and pulmonary vein.
C)  aorta and inferior vena cava.
D)  inferior vena cava and superior vena cava.
E)  aorta and superior vena cava.F) B) and E)
G) A) and C) D

Question 19

The protein found in red blood cells that transports oxygen is

Accepted Answer

A)  myoglobin.
B)  actin.
C)  fibrinogen.
D)  hemoglobin.
E)  myosin.F) A) and B)
G) B) and C)

Question 20

In a closed circulatory system,the heart pumps fluid through open-ended vessels into spaces where the fluid bathes the body's cells.

Accepted Answer

A) True 
 B)False

Exam 27: The Circulatory and Respiratorysystems

Place the following terms in the correct order from which an oxygen molecule in blood travels from the heart to a muscle cell in the arm where ATP will be made for the arm to lift an object.

Correct AnswerverifiedShow Answer

The chambers of the heart that push blood to the lungs or body are the ventricles.

Correct AnswerverifiedShow Answer

The hormone erythropoietin (EPO) stimulates the production of red blood cells.What effect would this have on transport of oxygen and carbon dioxide?

Correct AnswerverifiedShow Answer

If you exercised more and more intensely over two months,your resting heart rate would decrease.

Correct AnswerverifiedShow Answer

The most important signal that the brain uses to set the breathing rate is the level of blood

Correct AnswerverifiedShow Answer

A heart murmur is caused by

Correct AnswerverifiedShow Answer

The concentration of oxygen is decreased at high altitude.Why would this make it harder for a person to get enough oxygen into their blood?

Correct AnswerverifiedShow Answer

Capillary beds are networks of capillaries that connect arterioles and venules.

Correct AnswerverifiedShow Answer

ATP is required by cells to provide power for

Correct AnswerverifiedShow Answer

The liquid matrix of blood is

Correct AnswerverifiedShow Answer

A defibrillator contains two paddles that are placed on a person's chest and through which an electrical shock is administered.What is this procedure treating?

Correct AnswerverifiedShow Answer

If a bird can mimic human speech,it can mimic the action of what organ?

Correct AnswerverifiedB

The large vessels of the circulatory system that carry blood away from the heart are

Correct AnswerverifiedC

A dual-chamber pacemaker is surgically placed in a patient's chest.Wires then carry pulses to the right atrium and the right ventricle.How would the pulses be directed from the pacemaker to the heart?

Correct AnswerverifiedShow Answer

The walls of the right ventricle are thicker than those of the left ventricle.

Correct AnswerverifiedShow Answer

The small vessels from which water and dissolved substances diffuse between the blood and interstitial fluid are

Correct AnswerverifiedShow Answer

If you exercised more and more intensely over two months,your heart would be able to pump out more and more blood with each stroke.

Correct AnswerverifiedShow Answer

The two largest veins of the body that deliver blood to the right atrium are the

Correct AnswerverifiedD

The protein found in red blood cells that transports oxygen is

Correct AnswerverifiedShow Answer

In a closed circulatory system,the heart pumps fluid through open-ended vessels into spaces where the fluid bathes the body's cells.

Correct AnswerverifiedShow Answer

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B

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C

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D

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