Contents
Key Stage 3
Meaning
A concentration gradient is when one region has a higher concentration of particles than another.
About Concentration Gradients
- When there is a concentration gradient in a fluid particles will diffuse from the higher concentration to the lower concentration until there is no longer a concentration gradient.
Key Stage 4
Meaning
A concentration gradient is when one region has a higher concentration of particles than another.
About Concentration Gradients
- When there is a concentration gradient in a fluid particles will diffuse from the higher concentration to the lower concentration until there is no longer a concentration gradient.
- Cells are able to move particles against the concentration gradient by active transport.
References
AQA
- Concentration gradient, pages 29, 32, GCSE Biology, Hodder, AQA
- Concentration gradient, pages 68-9, 86, 92, GCSE Biology; Student Book, Collins, AQA
- Concentration gradients, page 20, GCSE Biology; The Revision Guide, CGP, AQA
- Concentration gradients, pages 14-16, 188-189, GCSE Biology; Third Edition, Oxford University Press, AQA
- Concentration gradients, pages 29, 31, 312, GCSE Combined Science Trilogy 1, Hodder, AQA
Edexcel
- Concentration gradient, pages 20, 92, GCSE Combined Science, Pearson Edexcel
- Concentration gradient, pages 24, 130, 164, GCSE Biology, Pearson, Edexcel