7222934
Descrição
Quiz por Alexandra Bozan, atualizado more than 1 year ago
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Criado por Alexandra Bozan
mais de 7 anos atrás
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Questão 1
Questão
If oxygen is 21% of the atmosphere, it will contribute [blank_start]21%[blank_end] of the total atmospheric pressure.
Responda
-
21%
-
79%
-
0.21%
-
0.79%
Questão 2
Questão
The amount of oxygen that diffuses into blood each minute depends on the
Responda
-
total functional surface area of the respiratory membrane
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respiratory minute volume
-
alveolar ventilation
-
all of the above
Questão 3
Questão
Po2 at standard atmosphere pressure is approximately
Responda
-
21 mm Hg
-
0.2 mm Hg
-
160 mm Hg
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760 mm Hg
Questão 4
Questão
Anything that decreases the total functional surface are of the respiratory membrane
Responda
-
tends to decrease oxygen diffusion into the blood
-
tends to increase oxygen diffusion into the blood
-
has little effect on oxygen diffusion
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increases the humidity of oxygen as it diffuses
Questão 5
Questão
Partial pressure and tension can be used interchangeably
Responda
- True
- False
Questão 6
Questão
The diameter of the pulmonary capillaries allows red blood cells to travel through at 10 abreast
Responda
- True
- False
Questão 7
Questão
Nitrogen is the gas of greatest concentration in atmospheric air
Responda
- True
- False
Questão 8
Questão
Oxygen is carried in blood
Responda
-
as oxyhemoglobin
-
dissolved in plasma
-
molecularly as HbO2
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all of the above
Questão 9
Questão
Which of the following is not a manner in which CO2 is transported in the blood
Responda
-
dissolved in plasma
-
bound to the heme group of the hemoglobin
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as bicarbonate ions
-
bound to the polypeptide chairs of hemoglobin
Questão 10
Questão
Increasing the carbon dioxide content of blood results in
Responda
-
a. increased H+ concentration of plasma
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b. decreased blood pH
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c. increased blood pH
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d. both a and b
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e. both a and c
Questão 11
Questão
Approximately 97% of oxygen is transported as [blank_start]oxyhemoglobin[blank_end], whereas the remaining 3% is transported dissolved in [blank_start]plasma[blank_end].
Responda
-
oxyhemoglobin
-
plasma
-
bicarbonate ion
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plasma
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hemoglobin
-
bicarbonate ion
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carbonic acid
Questão 12
Questão
The exact amount of oxygen in blood depends mainly upon the amount of hemoglobin present.
Responda
- True
- False
Questão 13
Questão
As plasma Pco2 increases, the CO2 carrying capacity of blood decreases
Responda
- True
- False
Questão 14
Questão
Interstitial fluid PO2 and intracellular fluid PO2 are essentially the same
Responda
- True
- False
Questão 15
Questão
A right shift of the oxygen-hemoglobin dissociation curve due to increased PCO2 is known as the Bohr effect
Responda
- True
- False
Questão 16
Questão
Carbaminohemoglobin is formed when [blank_start]carbon dioxide[blank_end] binds to hemoglobin.
Responda
-
carbon dioxide
-
oxygen
-
amino acids
-
nitrogen
Questão 17
Questão
Most of the oxygen transported by the blood is
Responda
-
dissolved to white blood cells
-
bound to white blood cells
-
bound to hemoglobin
-
bound to cabaminohemoglobin
Questão 18
Questão
The increased total CO2 loading caused by a decrease in PO2 is a phenomenon knows as the
Responda
-
Haldane effect
-
Bohr effect
-
Boyle effect
-
Dalton effect
Questão 19
Questão
Fick's law
Responda
-
describes the formation of oxyhemoglobin
-
describes the diffusion of carbon dioxide and oxygen across the respiratory membrane
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describes the principle that states that a gas's volume is inversely proportional to its pressure
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states that volume is directly proportional to temperature when pressure is held constant
Questão 20
Questão
Which of the following is true regarding the diffusion of oxygen from the alveolar air into the blood in lung capillaries?
Responda
-
the walls of the alveoli and the capillaries together form a very thin barrier for the gases to cross
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alveolar and capillary surfaces are both extremely large
-
lung capillaries accommodate a large amount of blood at one time
-
all of the above are true
Questão 21
Questão
Gases
Responda
-
move in both directions through the respiratory membrane
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cause a decrease in acidity or an increase in pH in the blood when there is an increase in carbon dioxide
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enter and leave the internal environment by osmosis
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none of the above
Questão 22
Questão
Oxygen travels in two forms: as dissolved O2 in the [blank_start]plasma[blank_end] and as O2 associated with [blank_start]hemoglobin[blank_end].
Responda
-
plasma
-
hemoglobin
Questão 23
Questão
The compound formed when carbon dioxide combines with hemoglobin is [blank_start]carbaminohemoglobin[blank_end].
Responda
-
carbaminohemoglobin
Questão 24
Questão
According to the rate of law of chemistry, as more CO2 is added to the plasma, more will be converted to [blank_start]carbonic[blank_end] [blank_start]acid[blank_end].
Responda
-
carbonic
-
acid
Questão 25
Questão
[blank_start]Carbon[blank_end] [blank_start]monoxide[blank_end] binds to hemoglobin more than 200 times more strongly than oxygen.
Responda
-
Carbon
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monoxide
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