Question

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

Answer 1

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Multi-cellular organism’s like humans have very big body and require a lot of oxygen to diffuse into body quickly in order to meet the oxygen requirement. Diffusion is a slow process which will take a lot of time to circulate oxygen to all the body cells. Because of its slow nature diffusion is insufficient to meet the oxygen requirements of multicellular organisms like humans.

Answer 2

Answer:

In multicellular organisms such as man, the volume of the human body is big and hence, oxygen cannot diffuse into all the cells of the human body quickly. Hence, diffusion is insufficient to meet the oxygen requirements of multicellular organisms like humans.

Explanation:

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