Question

the lungs are adapted to allow these gases to pass easily in and out of the blood.
Give three ways in which the lungs are well adapted for gas exchange.

Answer 1

Answer:

Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Extensive blood supply - ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.

Answer 2

The ways are as follows -

• Lungs have alveoli which increases their surface area.
• Lungs are well supplied with blood capillaries to fasten the process of diffusion.
• Lungs are flexible as they increases their size when we inhale.

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