Combined Science GCSE
Cell size and organism size
What Cell size and organism size means in Combined Science GCSE, as defined for AQA.
Definition of Cell size and organism size
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Reference: AQA
As a cell gets bigger, volume grows faster than surface area, so the ratio falls and diffusion alone becomes too slow to meet demand.
Topics that use Cell size and organism size
- Diffusion (AQA GCSE)
Related terms
- Adaptations of exchange surfaces
- Blood supply
- Concentration gradient
- Diffusion
- Diffusion and exchange surfaces
- Diffusion distance
- Exchange surface
- Exchange surfaces
Using Cell size and organism size in the exam
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