Question

Why is diffusion insuficient to meet the oxygen requirments of multicellulaelar organisms like humans

Answer 1

Because in humans more than crores of cells are there thus diffusion is not do fast process to provide oxygen.

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Answer 2

HEYMATE!!!!

■ In multi - cellular organisms, all the cells may not be in direct contact with the surrounding environment.

■thus,simple diffusion will not meet the requirements of all the cells.

■In case of a single - celled organism, no specific organs for taking in food, exchange of gases or removal of wastes may be needed because the entire surface of the organism is in contact with the surrounding environment.

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