Question

How are the oxygen and carbondioxide dransported on human being How are the lungs designed to maximize the area for exchange of gases

Answer 1

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##Oxygen is transported via the pigment hemoglobin which is present in red blood cells

##Carbon dioxide is highly soluble in water so it is transported by the blood plasma

**** lungs are designed in many ways to maximize the exchange of gases
# large surface area of lungs
# moist surface
# thin walls to make the diffusion easy and rapidly
# highly vascular in nature

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Answer 2

♤ In the lungs, the air passage that divides into smaller and smaller tubes called bronchi which form bronchioles .

♤ The bronchioles terminate in the balloon like structure called alveoli.

♤ The alveoli present in the lungs provide maximum surface for exchange of gases.

♤ The alveoli have very thin walls and contain an extensive network of blood vessels to facilitate exchange of gases.