Biology GCSE
Scale and cell size
What Scale and cell size means in Biology GCSE, as defined for AQA.
Definition of Scale and cell size
Check what you remember
Read the wording for your board, then hide it and explain Scale and cell size in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
As an object becomes smaller, its surface area falls, but its volume falls much faster, so the ratio of surface area to volume rises.
Topics that use Scale and cell size
- Diffusion (AQA GCSE)
Related terms
- Concentration gradient
- Concentration gradients
- Diffusion
- Diffusion and concentration gradients
- Diffusion and metabolic demand
- Diffusion and organism size
- Exchange surfaces
- Exchange surfaces in animals
Using Scale and cell size in the exam
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