IB Biology SL 3.1.4 Mammalian Lung Adaptations Question Bank

Practise IB Biology SL 3.1.4 using exact SL questions on alveolar structure, vascularisation, surfactant and emphysema-related gas exchange.

Exam points

Relate alveolar surface area, thin walls, moisture and capillaries to efficient gas exchange.
Explain how ventilation, alveolar structure and surfactant support oxygen and carbon-dioxide diffusion.
Use emphysema evidence to predict changes in gas exchange and exercise response.

[Maximum number: 3]

Describe three features of alveoli that adapt them to gas exchange.

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