Why is it that diffusion is insufficient to meet the oxygen requirements in multicellular organisms?
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- Diffusion is a slow process. In multicellular organisms, the cells are not in direct contact with the outside environment as in unicellular organisms. Diffusion is insufficient to meet the oxygen requirement of multicellular organisms like human because all the cells are not direct contact in environment and diffusion is a slow process.
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Why is it that diffusion is insufficient to meet the oxygen requirements in multicellular organisms?
☆In single-celled organisms such as protists , and small multicellular organisms, essential molecules will move to where they're needed by diffusion . Diffusion is limited by the surface area to volume ratio of the organism. ...
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