_______ is the functional unit of respiratory system where exchange of gases takes place.

Goblet cell

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Alveoli

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Goblet duct

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Nephron

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Solution

The correct option is B Alveoli
Alveoli are the tiny ballon-shaped functional units of respiratory system where the exchange of gases takes place. These tiny structures are present in the lungs and are only one cell thick, allowing the relatively easy passage of oxygen and carbon dioxide (CO2) between the alveoli and blood vessels called capillaries.

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Similar questions

Where does the exchange of gases take place in the respiratory system?

Name the woody stem through which respiratory exchange of gases takes place .

Question 3

The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in –

(a) veins

(b) arteries

(d) capillaries

The ___ provide a surface where the exchange of gases can take place.

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