How are the lungs designed in human beings to maximise the area for exchange of gases?
Answers
Movement in sensitive plants
Movement in our legs
1
The movement in a sensitive plant is a response to stimulus(touch) which is a involuntary action.
1
Movement in our legs is a voluntary action.
2
No special tissue is there for the transfer of information
2
A complete system CNS and PNS is there for the information exchange.
3
Plant cells do not have specialised protein for movements.
3
Animal cells have specialised protein which help muscles to contract.
Answer:
The alveolar walls have a huge amount of the blood vessels around it and the alveoli also have a large surface area which allows the maximum gaseous exchange to take place through it. Both the lungs contain a huge number which is approximately 300-450 millions of alveoli present in it.
Thus, huge amount of gaseous exchange takes place through it and this mechanism creates the maximum amount of transfer through it.