Exchanging Oxygen And Carbon Dioxide! Trivia Facts Quiz
10 Questions
| Total Attempts: 111
.
Questions and Answers
- 1.Diffusion is the spontaneous movement of gases without the use of any energy or effort and requires a concentration/pressure gradient.
- A.
True
- B.
False
- 2.Oxygen molecules move (diffuse) from an area of (____________) in the alveoli of the lungs to an area of (____________) into the blood where they bind to red blood cells to oxygenate the body.
- A.
Higher PO2; Lower PO2
- B.
Lower PO2; Higher PO2
- C.
Moderate PO2; Mild PO2
- D.
Mild PO2; Moderate PO2
- 3.Diffusion capacity is a measure of how well oxygen and carbon dioxide are transferred between the lung and the blood.
- A.
True
- B.
False
- 4.What is the primary function of hemoglobin?
- A.
Transport carbon dioxide
- B.
Transport oxygen
- C.
Remove nitrogen
- D.
Remove carbon monoxide
- 5.As air travels through the respiratory tract and becomes humidified (water is added), the PO2:
- A.
Increases
- B.
Decreases
- C.
Stays the same
- 6.Which of the following does NOT determine partial pressure of O2 and CO2 in the lungs?
- A.
Atmospheric pressure of outside air
- B.
Atmospheric pressure on the moon
- C.
Rate of alveolar ventilation and perfusion
- D.
Humidified air by the upper airway
- 7.As you expire air the value measured with a PFT device of the PO2 will __________ and the measured value of PCO2 will __________.
- A.
Increase; increase
- B.
Increase; decrease
- C.
Decrease; increase
- D.
Decrease; decrease
- 8.Diffusion of gas across a fluid membrane (alveolar membrane) can be affected by all of the following EXCEPT:
- A.
Difference in partial pressures of gases
- B.
Surface area of the membrane
- C.
Thickness of the membrane
- D.
Color of the membrane
- 9.With COPD, some bronchioles are obstructed leaving the alveoli beyond the obstructions unventilated. (no air flow, some blood flow)
- A.
True
- B.
False
- 10.To convert carbon monoxide-diffusing capacity to oxygen-diffusion capacity, the value is multiplied by a factor of __________.
- A.
1.23
- B.
10.30
- C.
11.1
- D.
50
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