MCQ C.4.5. - BasicPhysiology.org

C.4.5. The Respiratory Membrane

Created on September 28, 2023 By

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MCQ C.4.5.

The Respiratory Membrane

1 / 4

If the alveoli do not contain surfactant, what will happen?

The alveoli will increase in size

The alveoli will decrease in size

The inspired air will be more humidified

The inspired air will be less humidified

2 / 4

When oxygen diffuses from the alveoli into the red blood cells, how many cellular membranes does the oxygen molecules have to pass through?

Two membranes

Three membranes

Four membranes

Five membranes

Six membranes

3 / 4

If you could measure the total amount of surface area of the alveoli in your lungs, how large would this area be?

The surface size of your breakfast dish

The surface size of your kitchen table

The surface size of your kitchen floor

The surface size of your house

4 / 4

In which air is the amount of oxygen the highest?

In the outside air

In humidified air

In the alveolar air

In the expired air

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