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During respiration exchange of gases take place in
(a) trachea and larynx
(b) alveoli of lungs
(c) alveoli and throat
(d) throat and larynx

Answers (1)


Alveoli is the place where the exchange of carbon dioxide and oxygen takes place.
Air is drawn into our body through the nostrils, then it goes into nasal passage. From there it enters pharynx and then to larynx to trachea to finally alveoli where the final oxygen and carbon dioxide are exchanged.
Hence option (b) is correct.

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