Biology for IGCSE & O level - Gas Exchange In Humans (Section 3 - No. 5) | ExamPlay

Biology for IGCSE & O level - Gas Exchange In Humans (Section 3 - No. 5)

What are the small sacs within the lungs called where gas exchange occurs?

Bronchioles

Bronchi

Alveoli

Trachea

Explanation

Gas exchange happens in the alveoli.

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