3.3 Organisms exchange substances with their environment: AQA A-Level Biology Questions

Practise 3.3 organisms exchange substances with their environment with AQA A-Level Biology questions and mark schemes. Revise 3.3.1 Surface area to volume ratio, 3.3.2 Gas exchange, 3.3.3 Digestion and absorption.

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What to revise

• 3.3.1 Surface area to volume ratio
• 3.3.2 Gas exchange
• 3.3.3 Digestion and absorption
• 3.3.4.1 Mass transport in animals
• 3.3.4.2 Mass transport in plants

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