Biology · A-Level · Edexcel · Edexcel A-level Biology B - 9BI0 · Specification point · 4.1 · Exchange and Transport
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4.1 Surface area to volume ratio
| Students should: |
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i Understand how surface area to volume ratio affects transport of molecules in living organisms. ii Understand why organisms need a mass transport system and specialised gas exchange surfaces as they increase in size. |