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Life Processes
Question
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How are the alveoli designed to maximise the exchange of gases?

Answer

The alveoli are designed to maximise the exchange of gases in the following way:
(i) The alveoli are thin walled and richly supplied with a network of blood vessels to facilitate exchange of gases between blood and the air filled in alveoli.
(ii) Alveoli have balloon like structure. Thus, provide maximum surface for exchange gases.

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Some More Questions From Life Processes Chapter

Why are molecular movements needed for life?

Why are life processes needed?

 

Name the life processes needed to maintain life.

What exactly do life processes need to do?

Why does a single-celled organism not need specific organs for taking in food, exchange of gases or removal of wastes?

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

What criteria do we use to decide whether something is alive?

What are outside raw materials used for by an organism?

What processes would you consider essential for maintaining life?

From where do you get the energy to do work from?