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2 June, 04:50

Which statements explain the gas exchange that happens at the alveoli? Check all that apply.

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  1. 2 June, 05:08
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    Gas exchange occurs at the alveoli in the lungs and takes place by diffusion. The alveoli are surrounded by capillaries so oxygen and carbon dioxide diffuse between the air in the alveoli and the blood in the capillaries
  2. 2 June, 07:32
    0
    B, C, E

    Explanation:

    We take in blood, which travels from our lungs to the alveoli. The alveoli "gives" the capillaries, containing air, oxygen. The capillaries 'owe' their carbon dioxide to the alveoli. When we exhale the carbon dioxide flows right out. However, the air we breathe out has a certain amount of oxygen.
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