internal respiration

external respiration

How does gas exchange take place across biological membranes?

What is meant by partial pressure?

physical factors influence rate of diffusion (6)
PTSTSD

Fick's Law (7)

Why air>water?

What do the respiratory systems of animals consist of? (3)

What is the primary role of a respiratory system?

Why aren't these adaptations suitable for larger organisms?

Describe the adaptations of life to liquid environments. (4)

Describe the adaptations of life to gaseous environments. (5)

Draw a labelled diagram of the structure of the human respiratory system (6)

Lung zones

Structures in conducting
TBBT

Structures in transitional + resp. zones
RAA

What happens in the "dead space" of the conducting zone? (3)

What happens in the transitional and respiratory zones? (4)

Draw a diagram taken from a spirometer test
Re capa capa
capa re re

What does the tidal volume show?

What does the inspiratory reserve volume show?

What does the inspiratory reserve capacity show?

What does the vital capacity show?

What does the expiratory reserve volume show?

What does the residual volume show?

What are the consequences of tidal ventilation? (5)

How do you calculate the alveolar ventiliation rate?

How is alveolar ventilation increased?