Question 1

In the systemic circulation,the oxygen-poor blood travels from the heart to the capillaries surrounding the alveoli,expels carbon dioxide,and picks up oxygen.

Accepted Answer

A) True 
 B)False

Question 2

What drives the movement of carbon dioxide from tissue into the bloodstream?

Accepted Answer

A)  active transport against a concentration gradient
B)  facilitated diffusion down a concentration gradient
C)  diffusion down a concentration gradient
D)  facilitated diffusion against a concentration gradient
E)  the heart pumping the carbon dioxide into the bloodstreamF) None of the above
G) A) and B)

Question 3

One of the main reasons that we exhale a higher percentage of carbon dioxide than we inhale is that

Accepted Answer

A)  we use carbon dioxide to make glucose.
B)  we produce carbon dioxide as a byproduct of aerobic respiration.
C)  we produce carbon dioxide as a byproduct of transmission of nerve impulses across synapses.
D)  carbon dioxide is a byproduct of photosynthesis.
E)  carbon dioxide dissolves better in blood than does oxygen.F) B) and E)
G) B) and C)

Question 4

Each alveolus of the lung is a small sac with a wall of epithelial tissue that is many layers thick,thereby providing structural support for the air sacs.

Accepted Answer

A) True 
 B)False

Question 5

In the section "Investigating Life: In (Extremely) Cold Blood",which of the following is the best explanation of the globin gene cluster observed in Neopagetopsis ionah?

Accepted Answer

A)  N.ionah is not an ice fish.
B)  Identical mutations occurred in the alpha and beta globin genes four separate times since ice fishes diverged from red-blooded fishes.
C)  N.ionah's mutations in the alpha and beta genes happened since their common ancestry with other ice fishes.
D)  The mutations in the alpha and beta globin genes do not explain why ice fish have white blooD.
E)  The ancestor to ice fishes and red-blooded fishes did not have alpha and beta globin genes,and these arose in the red-blooded fishes after the two groups diverged.F) C) and D)
G) A) and B)

Question 6

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

Question 7

The upper respiratory tract is composed of

Accepted Answer

A)  the nose,pharynx,and tracheA.
B)  the nose,larynx,and trachea.
C)  the nose,trachea,and lungs.
D)  the nose,pharynx,and larynx.
E)  the nose and pharynx.F) B) and C)
G) All of the above

Question 8

In the pulmonary circulation arteries deliver freshly-oxygenated blood to all the body's tissues.

Accepted Answer

A) True 
 B)False

Question 9

Systolic pressure reflects the force caused by

Accepted Answer

A)  the contraction of the atriA.
B)  the relaxation of the atria.
C)  the relaxation of the ventricles.
D)  the contraction of the ventricles.
E)  the heart ratE.F) A) and B)
G) A) and C)

Question 10

A cut is made into the tissue of a living organism.In which of the following system will the blood flow out of the organism the fastest?

Accepted Answer

A)  open circulatory system
B)  closed circulatory system
C)  open digestive system
D)  open respiratory system
E)  closed respiratory systemF) A) and D)
G) A) and C)

Question 11

What drives the movement of oxygen from the alveoli into the bloodstream?

Accepted Answer

A)  active transport against a concentration gradient
B)  facilitated diffusion down a concentration gradient
C)  facilitated diffusion against a concentration gradient
D)  diffusion down a concentration gradient
E)  the heart pumping the oxygen into the bloodstreamF) C) and E)
G) D) and E)

Question 12

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

Question 13

Which of the following is NOT a main function of the upper respiratory system?

Accepted Answer

A)  sense of smell
B)  gas exchange between the lungs and the atmosphere
C)  production of sounds
D)  transport of oxygen to the cells of the body
E)  maintaining blood pH homeostasisF) B) and E)
G) A) and B)

Question 14

Which is the correct order for the time required to replace each blood component from shortest to longest?

Accepted Answer

A)  plasma,red blood cell,platelet
B)  platelet,red blood cell,plasma
C)  red blood cell,platelet,plasma
D)  plasma,platelet,red blood cell
E)  red blood cell,plasma,plateletF) A) and D)
G) C) and D)

Question 15

Vertebrates with a four-chambered heart include

Accepted Answer

A)  fishes.
B)  mollusks.
C)  birds.
D)  amphibians.
E)  annelids.F) C) and D)
G) None of the above

Question 16

In cystic fibrosis,a thick dry mucus builds up in the alveoli.Which of the following would you expect to occur in these patients?

Accepted Answer

A)  decreased rate of respiration
B)  increased diffusion of carbon dioxide into capillaries from the alveoli
C)  decreased blood flow to the alveoli
D)  increased blood flow to the alveoli
E)  decreased diffusion of oxygen into capillaries from the alveoliF) C) and D)
G) None of the above

Question 17

The liquid matrix of blood is

Accepted Answer

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

Question 18

A typical blood pressure reading for a young adult is 80/120.

Accepted Answer

A) True 
 B)False

Question 19

The large vessels that carry blood to the heart are

Accepted Answer

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

Question 20

The smooth muscle of the diaphragm expands the lungs and the skeletal muscle of the lungs regulates airflow to the alveoli.

Accepted Answer

A) True 
 B)False

Exam 27: The Circulatory and Respiratory Systems

A cut is made into the tissue of a living organism.In which of the following system will the blood flow out of the organism the fastest?

Correct AnswerverifiedShow Answer

ATP is required by cells to provide power for

Correct AnswerverifiedShow Answer

The liquid matrix of blood is

Correct AnswerverifiedShow Answer

What drives the movement of oxygen from the alveoli into the bloodstream?

Correct AnswerverifiedShow Answer

The smooth muscle of the diaphragm expands the lungs and the skeletal muscle of the lungs regulates airflow to the alveoli.

Correct AnswerverifiedShow Answer

Which is the correct order for the time required to replace each blood component from shortest to longest?

Correct AnswerverifiedShow Answer

The upper respiratory tract is composed of

Correct AnswerverifiedShow Answer

Which of the following is NOT a main function of the upper respiratory system?

Correct AnswerverifiedShow Answer

What drives the movement of carbon dioxide from tissue into the bloodstream?

Correct AnswerverifiedShow Answer

In the pulmonary circulation arteries deliver freshly-oxygenated blood to all the body's tissues.

Correct AnswerverifiedShow Answer

The large vessels that carry blood to the heart are

Correct AnswerverifiedShow Answer

One of the main reasons that we exhale a higher percentage of carbon dioxide than we inhale is that

Correct AnswerverifiedShow Answer

Vertebrates with a four-chambered heart include

Correct AnswerverifiedShow Answer

Systolic pressure reflects the force caused by

Correct AnswerverifiedShow Answer

A typical blood pressure reading for a young adult is 80/120.

Correct AnswerverifiedShow Answer

In the systemic circulation,the oxygen-poor blood travels from the heart to the capillaries surrounding the alveoli,expels carbon dioxide,and picks up oxygen.

Correct AnswerverifiedShow Answer

In cystic fibrosis,a thick dry mucus builds up in the alveoli.Which of the following would you expect to occur in these patients?

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

In the section "Investigating Life: In (Extremely) Cold Blood",which of the following is the best explanation of the globin gene cluster observed in Neopagetopsis ionah?

Correct AnswerverifiedShow Answer

Each alveolus of the lung is a small sac with a wall of epithelial tissue that is many layers thick,thereby providing structural support for the air sacs.

Correct AnswerverifiedShow Answer

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