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Secondary IV • 1yr.

what is gas exchange and diffusion?


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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Team Alloprof • 1yr.

    Hello Calm Swan!

    Welcome on the Help Zone!

    Gas exchange occurs in the human body to release toxic gases, such as \(CO_2\), and to bring in needed gases, such as \(O_2\). 

    Gas exchange occurs on the principle of diffusion, as gas moves from a place of higher concentration to a place of lower concentration. For example, when we breathe, the air in our lungs has a higher concentration of oxygen than our blood. This forces oxygen to move from the lungs to the blood. 

    If you want to know more about this process, you can read the following page: 

    I hope this helps!

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