Exchange and Transport Systems · Human Systems
Gas Exchange Mechanisms
Compare gas exchange in humans, fish, and insects, focusing on adaptations for efficiency.
Key Questions
- 1How does the counter-current exchange system in fish maximize oxygen uptake from water?
- 2Why do terrestrial organisms face a constant trade-off between gas exchange and water loss?
- 3What physical laws govern the diffusion of gases across alveolar membranes?
National Curriculum Attainment Targets
A-Level: Biology - Exchange Surfaces
Year: Year 12
Subject: Biology
Unit: Exchange and Transport Systems
Period: Human Systems
Suggested Methodologies
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