Difference between revisions of "Concentration Gradient"
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: When there is a '''concentration gradient''' in a [[fluid]] [[particle]]s will [[diffusion|diffuse]] from the higher [[concentration]] to the lower [[concentration]] until there is no longer a '''concentration gradient'''. | : When there is a '''concentration gradient''' in a [[fluid]] [[particle]]s will [[diffusion|diffuse]] from the higher [[concentration]] to the lower [[concentration]] until there is no longer a '''concentration gradient'''. | ||
: [[Cell (Biology)|Cells]] are able to move [[particle]]s against the '''concentration gradient''' by [[Active Transport|active transport]]. | : [[Cell (Biology)|Cells]] are able to move [[particle]]s against the '''concentration gradient''' by [[Active Transport|active transport]]. | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Concentration gradient, pages 29, 32, GCSE Biology, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f180 ''Concentration gradient, pages 68-9, 86, 92, GCSE Biology; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Concentration gradients, page 20, GCSE Biology; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Concentration gradients, pages 14-16, 188-189, GCSE Biology; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Concentration gradients, pages 29, 31, 312, GCSE Combined Science Trilogy 1, Hodder, AQA ''] | ||
Revision as of 14:45, 3 November 2019
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