Question

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i) Which life process is shown in the above figure ?
ii) What are the factors involved in this life process ?
iii) Write the balanced equation which is suitable for this
D.
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Answer 1

Q1. Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?

Ans. In multicellular organisms all the cells may not be in direct contact with the surrounding environment. Hence diffusion will not meet all the requirements of all the cells.