Question 1

The formation of carbaminohemoglobin is a reversible reaction.

Accepted Answer

A) True 
 B)False

Question 2

In a resting person, the oxygen saturation in the systemic venous blood is still about 50%.

Accepted Answer

A) True 
 B)False

Question 3

Assume the percent of oxygen in the air is constant (about 21%). What is the partial pressure of oxygen in the mountains, where the atmospheric pressure is 725 mm Hg?

Accepted Answer

The answer of Assume the percent of oxygen in the...

Question 4

An increase in carbon dioxide would have the opposite effect on oxygen-hemoglobin dissociation than would a drop in blood pH.

Accepted Answer

A) True 
 B)False

Question 5

In the lung oxygen moves down its pressure gradient, whereas carbon dioxide moves up its pressure gradient.

Accepted Answer

A) True 
 B)False

Question 6

Because of tissue layers between alveolar air and the blood supply, arterial blood PO₂ is always less than alveolar PO₂.

Accepted Answer

A) True 
 B)False

Question 7

Increased cellular activity would increase the oxygen gradient between the cells and the arterial blood.

Accepted Answer

A) True 
 B)False

Question 8

Oxygenated blood contains equal amounts of both dissolved oxygen and oxygen combined with hemoglobin.

Accepted Answer

A) True 
 B)False

Question 9

Carbon dioxide is carried in three forms in the blood. Ranking them from greatest to least amount carried, the sequence would be:

Accepted Answer

A)   dissolved in the plasma, carbaminohemoglobin, and bicarbonate ion.
B)   carbaminohemoglobin, bicarbonate ion, and dissolved in plasma.
C)   bicarbonate ion, dissolved in plasma, and carbaminohemoglobin.
D)   bicarbonate ion, carbaminohemoglobin, and dissolved in plasma.E) All of the above
F) A) and B)

Question 10

Explain the process by which oxygen is transported by the blood.

Accepted Answer

Oxygen is transported by the blood throu...

Question 11

Explain Dalton law as it relates to the movement of oxygen from the lungs into the circulatory system.

Accepted Answer

Dalton's law states that in a mixture of...

Question 12

Which of the following helps determine the amount of oxygen that diffuses into the blood each minute?

Accepted Answer

A)   The total functional surface area of the respiratory membrane
B)   Alveolar ventilation
C)   The oxygen pressure gradient between alveolar air and incoming pulmonary blood
D)   All of the above help determine the amount of oxygen that diffuses into the blood each minute.E) None of the above
F) A) and C)

Question 13

The enzyme in blood plasma that helps form carbaminohemoglobin is carbonic anhydrase.

Accepted Answer

A) True 
 B)False

Question 14

The PO₂ is higher in the femoral artery than in the femoral vein.

Accepted Answer

A) True 
 B)False

Question 15

The terms oxygen partial pressure and oxygen tension are interchangeable.

Accepted Answer

A) True 
 B)False

Question 16

Iron is important in hemoglobin because it carries oxygen to the cells and carbon dioxide away from the cells.

Accepted Answer

A) True 
 B)False

Question 17

Explain the process by which carbon dioxide is transported by the blood.

Accepted Answer

Carbon dioxide is transported by the blo...

Question 18

If the PCO₂ is greater in the cells than in the intercellular fluid, CO₂ will remain in the cells.

Accepted Answer

A) True 
 B)False

Question 19

The PCO₂ in the atmosphere is:

Accepted Answer

A)   less than in the alveolar air.
B)   greater than in the alveolar air.
C)   equal to the alveolar air.
D)   greater than arterial blood.E) All of the above
F) B) and D)

Question 20

Identify the major factors that help determine the amount of oxygen that diffuses into the blood each minute.

Accepted Answer

The major factors that help determine th...

Exam 37: Gas Exchange & Transport

Which of the following helps determine the amount of oxygen that diffuses into the blood each minute?

Correct AnswerverifiedShow Answer

Increased cellular activity would increase the oxygen gradient between the cells and the arterial blood.

Correct AnswerverifiedShow Answer

An increase in carbon dioxide would have the opposite effect on oxygen-hemoglobin dissociation than would a drop in blood pH.

Correct AnswerverifiedShow Answer

Explain Dalton law as it relates to the movement of oxygen from the lungs into the circulatory system.

Correct AnswerAnswered by ExamLex AIDalton's law states that in a mixture of...View AnswerShow Answer

Because of tissue layers between alveolar air and the blood supply, arterial blood PO₂ is always less than alveolar PO₂.

Correct AnswerverifiedShow Answer

The enzyme in blood plasma that helps form carbaminohemoglobin is carbonic anhydrase.

Correct AnswerverifiedShow Answer

The formation of carbaminohemoglobin is a reversible reaction.

Correct AnswerverifiedShow Answer

Explain the process by which carbon dioxide is transported by the blood.

Correct AnswerAnswered by ExamLex AICarbon dioxide is transported by the blo...View AnswerShow Answer

The PO₂ is higher in the femoral artery than in the femoral vein.

Correct AnswerverifiedShow Answer

Assume the percent of oxygen in the air is constant (about 21%). What is the partial pressure of oxygen in the mountains, where the atmospheric pressure is 725 mm Hg?

Correct AnswerverifiedShow Answer

The terms oxygen partial pressure and oxygen tension are interchangeable.

Correct AnswerverifiedShow Answer

Carbon dioxide is carried in three forms in the blood. Ranking them from greatest to least amount carried, the sequence would be:

Correct AnswerverifiedShow Answer

Identify the major factors that help determine the amount of oxygen that diffuses into the blood each minute.

Correct AnswerAnswered by ExamLex AIThe major factors that help determine th...View AnswerShow Answer

In a resting person, the oxygen saturation in the systemic venous blood is still about 50%.

Correct AnswerverifiedShow Answer

The PCO₂ in the atmosphere is:

Correct AnswerverifiedShow Answer

Explain the process by which oxygen is transported by the blood.

Correct AnswerAnswered by ExamLex AIOxygen is transported by the blood throu...View AnswerShow Answer

Oxygenated blood contains equal amounts of both dissolved oxygen and oxygen combined with hemoglobin.

Correct AnswerverifiedShow Answer

Iron is important in hemoglobin because it carries oxygen to the cells and carbon dioxide away from the cells.

Correct AnswerverifiedShow Answer

In the lung oxygen moves down its pressure gradient, whereas carbon dioxide moves up its pressure gradient.

Correct AnswerverifiedShow Answer

If the PCO₂ is greater in the cells than in the intercellular fluid, CO₂ will remain in the cells.

Correct AnswerverifiedShow Answer

Correct Answer
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Answered by ExamLex AI
Dalton's law states that in a mixture of...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
Carbon dioxide is transported by the blo...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
The major factors that help determine th...
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Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
Oxygen is transported by the blood throu...
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Correct Answer
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