In which part of lungs gaseous exchange takes place in human?(a) Trachea & alveolar duct(b) Trachea & bronchi(c) Alveolar duct & alveoli(d) Alveoli & TracheaThe question was posed to me by my school principal while I was bunking the class.This is a very interesting question from Human Respiratory System in chapter Breathing and Exchange of Gases of Biology – Class 11

In which part of lungs gaseous exchange takes place in human?(a) Trach

1.	In which part of lungs gaseous exchange takes place in human?(a) Trachea & alveolar duct(b) Trachea & bronchi(c) Alveolar duct & alveoli(d) Alveoli & TracheaThe question was posed to me by my school principal while I was bunking the class.This is a very interesting question from Human Respiratory System in chapter Breathing and Exchange of Gases of Biology – Class 11
Answer» Correct option is (c) ALVEOLAR duct & alveoli The explanation is: whole passage is divided into two parts one is conducting region and other is RESPIRATORY region. Conducting zone do not play any ROLE in EXCHANGE of gases but respiratory zone does. Alveolar duct & alveoli are the part of respiratory tree and are involved in gaseous exchange.

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