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InterviewSolution
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Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans |
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Answer» Diffusion, in multicellular organisms, is not enough to meet energy requirements of innermost cells of its body, as O2 reaches those cells gradually through this method. Because human has a very complex body structure and it take nearly 3 years to transfer o2 from heart to legs. Size of multicellular organism is very large as compare to unicellular organism and diffusion is passive mode of transportation of substance and can transfer gases up to a small distance only Because multicellular organisms has complex working systems which need more energy(oxygen) at a time where as diffusion is a very slow process which can\'t be able to fulfill the needs of sufficient oxygen to the body |
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