Understanding Gas Exchange

Practice Questions

AP Biology › Understanding Gas Exchange

Questions
4
1

Mountain climbing at a high altitude can have an affect on one's ability to breath efficiently. At high altitudes, atmospheric pressure can decrease dramatically and result in a lower drive for oxygen into the lungs. The body will try to compensate by increasing the rate of respiration.

How does hyperventilating change the blood chemistry in the human body?

2

How is oxygen carried after entering the blood of the pulmonary capillaries?

3

Gases diffuse down their concentration gradients, so in order for the body to exchange respiratory gases with the air as needed, air breathed into the lungs must have a __________ concentration of oxygen and a(n) __________ concentration of carbon dioxide compared to the blood in the lungs.

4

Choose the incorrect statement regarding gas exchange in the alveoli of the lungs.

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