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CO2 and O2 gases exchange in alveoli through a process called diffusion. During this process, does the gas move from high concentration to low concentration or low concentration to high concentration?
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18 votes
CO2 and O2 gases exchange in alveoli through a process called diffusion. During this process, does the gas move from high concentration to low concentration or low concentration to high concentration?

User Kimigori
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1 Answer

9 votes
9 votes
Since it’s diffusion it’s passive transport so from high concentration to low :)))
User Loganasherjones
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