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Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans ?

Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans ?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
one year ago
In multicellular organisms like humans, all the body cells are not in direct contact with the surrounding environment. Therefore, every cell of the body will not get oxygen as per need by the process of diffusion from the environment. Therefore diffusion is insufficient to meet the oxygen requirements of multicellular organisms.

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