Difference between revisions of "Alveoli"
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:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Alveoli, pages 64, 65, 77, GCSE Biology, CGP, AQA'] | :[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Alveoli, pages 64, 65, 77, GCSE Biology, CGP, 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=27ad53b0283feeff7fc5ae04a9e205f28 ''Alveolus, alveoli, pages 107, 118-9, GCSE Biology; Student Book, Collins, 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=27ad53b0283feeff7fc5ae04a9e205f28 ''Alveolus, alveoli, pages 107, 118-9, GCSE Biology; Student Book, Collins, AQA'] | ||
+ | ====Edexcel==== | ||
+ | :[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Alveoli, page 113, GCSE Combined Science, Pearson Edexcel ''] | ||
+ | :[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Alveoli, page 163, GCSE Biology, Pearson, Edexcel ''] | ||
+ | :[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Alveoli, page 60, GCSE Combined Science; The Revision Guide, CGP, Edexcel ''] | ||
+ | :[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Alveoli, page 88, GCSE Biology; The Revision Guide, CGP, Edexcel ''] | ||
+ | :[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Alveoli, pages 260, 261, GCSE Biology, CGP, Edexcel ''] |
Revision as of 11:12, 29 October 2019
Contents
Key Stage 3
Meaning
Alveoli are small air sacs in the lungs which are specially adapted for gas exchange.
Adaptations of Alveoli
- The alveoli have thin walls to allow gas exchange to happen quickly.
- Alveoli are in groups to make a large surface area in the lung for gas exchange.
- The alveoli have a good blood supply to allow gas exchange with the blood.
- The walls of the alveoli are kept moist to allow gases to dissolve into to the fluid for gas exchange with the blood.
About Alveoli
- The alveoli are where Oxygen enters the blood and Carbon Dioxide leaves the blood.
- There are thousands of alveoli in each lung.
- Alveoli are found at the end of bronchioles.
A diagram showing a single alveolus with the Oxygen going into the blood and Carbon Dioxide leaving the blood. |
Key Stage 4
Meaning
Alveoli are small air sacs in the lungs which are specially adapted for gas exchange.
Adaptations of Alveoli
- The walls of the alveoli separating the air from the blood are very thin allowing gases to diffuse quickly.
- The blood supply to the alveoli is very good to constantly supply of blood with little Oxygen and a lot of Carbon Dioxide keeping a high concentration gradient.
- The walls of the alveoli are kept moist to allow gases to dissolve into to the fluid for gas exchange with the blood.
About Alveoli
- The alveoli are where Oxygen enters the blood and Carbon Dioxide leaves the blood.
- There are thousands of alveoli in each lung.
- Alveoli are found at the end of bronchioles.
A diagram showing a single alveolus with the Oxygen going into the blood and Carbon Dioxide leaving the blood. |
References
AQA
- Alveoli, page 24, 33, GCSE Biology; The Revision Guide, CGP, AQA'
- Alveoli, page 313, GCSE Chemistry; Student Book, Collins, AQA'
- Alveoli, pages 21, 29, GCSE Combined Science; The Revision Guide, CGP, AQA'
- Alveoli, pages 23, 55, 61, GCSE Biology; Third Edition, Oxford University Press, AQA'
- Alveoli, pages 30, 31, GCSE Combined Science Trilogy 1, Hodder, AQA'
- Alveoli, pages 58, 59, 71, GCSE Combined Science Trilogy; Biology, CGP, AQA'
- Alveoli, pages 64, 65, 77, GCSE Biology, CGP, AQA'
- Alveolus, alveoli, pages 107, 118-9, GCSE Biology; Student Book, Collins, AQA'