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Surface Area to Volume Ratio and Gas Exchange
Biology · Year 12 · Organisms Exchange Substances with their Environment · 3.º Período

Surface Area to Volume Ratio and Gas Exchange

An investigation into how surface area to volume ratio influences exchange, and a detailed look at the gas exchange systems in insects, fish, dicotyledonous plants, and humans.

National Curriculum Attainment TargetsAQA A-Level Biology 3.3.1AQA A-Level Biology 3.3.2

About This Topic

An investigation into how surface area to volume ratio influences exchange, and a detailed look at the gas exchange systems in insects, fish, dicotyledonous plants, and humans.

Key Questions

  1. How does the surface area to volume ratio change with organism size?
  2. What are the structural adaptations of the human gas exchange system?
  3. How does the counter-current principle maximise oxygen absorption in fish gills?

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