Question

why is diffusion insufficient to meet the oxygen requirement of multicellular organism like humans​

Answer 1

Answer:

Diffusion is unable to meet oxygen requirements of multi-cellular organisms like humans because diffusion is a slow process.

EXPLANATION:

This means that the time taken for oxygen to circulate to all body cells is more. In addition, humans need a lot of oxygen in their cells and tissues so that the body activities can take place in the right manner and in time.

With diffusion, oxygen can’t diffuse into all body cells in a quick manner because the human body is large and has a large number of cells and tissues.

Answer 2

Answer:

Explanation: Diffusion is insufficient to meet oxygen requirement in human as they have complex body design and it is not necessary that all cell are in contact with surrounding to carry out Diffusion