Question

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

Answer 1

Answer:

Because in diffusion, every cell needs to be in the connection of atmosphere. But in multicellular organism, it is not possible.

Diffusion is a slow process which takes longer time for transport nutrients, gases like oxygen and carbon dioxide, blood. But in multi cellular organisms, transportation needs to faster for fulfill the requirement of every cell. that's why, multi cellular organisms have their own complex organ system.

Explanation:

Let us consider diffusion do exchanging of gases in humans, then it takes a very long time for providing Oxygen to each and every cell in a body at a time.

As it is not possible.Therefore diffusion is insufficient to meet the requirement of multi cellular organisms.

Answer 2

In multicellular organisms like human, it is not possible that all the cells are in direct contact with the surrounding environment. That is why diffusion is insufficient to meet the oxygen requirements of multicellular organisms.

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