Biology A (Salters-Nuffield) A-Level
Cross-sectional area
What Cross-sectional area means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Cross-sectional area
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Reference: Pearson Edexcel
Calculated using A = πr² after halving the measured diameter to obtain the radius.
Topics that use Cross-sectional area
- Topic 4: Biodiversity and Natural Resources (Pearson Edexcel A-Level)
Related terms
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- Binary fission
- Biodegradability
- Calcium and magnesium in plant structure and function
- Cellulose
Using Cross-sectional area in the exam
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