Difference between revisions of "Stomach"
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: The [[Hydrochloric Acid]] in the [[stomach]] kills [[bacteria]] to help prevent [[infection]] and keeps the [[stomach]] [[acid|acidic]] to be the [[optimum]] [[pH]] for the [[Digestive Enzyme]]s to work. | : The [[Hydrochloric Acid]] in the [[stomach]] kills [[bacteria]] to help prevent [[infection]] and keeps the [[stomach]] [[acid|acidic]] to be the [[optimum]] [[pH]] for the [[Digestive Enzyme]]s to work. | ||
: The [[protease]] [[pepsin]] is an [[enzyme]] found in the [[stomach]] which has an [[optimum]] [[pH]] of 1.6. | : The [[protease]] [[pepsin]] is an [[enzyme]] found in the [[stomach]] which has an [[optimum]] [[pH]] of 1.6. | ||
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+ | ===References=== | ||
+ | ====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 ''Stomach, page 31, GCSE Biology; The Revision Guide, 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=27ad53b0283feeff7fc5ae04a9e205f530 ''Stomach, pages 100, 103, 148, GCSE Biology; Student Book, Collins, 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 ''Stomach, pages 37-39, 48, 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 ''Stomach, pages 44, 47, GCSE Combined Science Trilogy 1, Hodder, 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 ''Stomach; acid production, page 85, GCSE Combined Science Trilogy 1, Hodder, AQA ''] |
Revision as of 15:47, 13 November 2019
Contents
Key Stage 1
Meaning
The stomach is a part of the body where our food goes when we eat it.
Key Stage 2
Meaning
The stomach is a part of the digestive system and digest our food.
Key Stage 3
Meaning
The stomach is an organ in the digestive system which breaks down food molecules into small molecules using enzymes.
About the Stomach
- The stomach produces Hydrochloric Acid.
- The Hydrochloric Acid in the stomach kills bacteria to help prevent us getting sick.
- The stomach digests food using enzymes.
- The enzymes in the stomach work best in acid.
Key Stage 4
Meaning
The stomach is an organ in the digestive system which breaks down food molecules into small molecules using enzymes.
About the Stomach
- The stomach produces Hydrochloric Acid.
- The stomach digests food using digestive enzymes including a protease called pepsin which breaks down proteins into amino acids.
- The Hydrochloric Acid in the stomach kills bacteria to help prevent infection and keeps the stomach acidic to be the optimum pH for the Digestive Enzymes to work.
- The protease pepsin is an enzyme found in the stomach which has an optimum pH of 1.6.
References
AQA
- Stomach, page 31, GCSE Biology; The Revision Guide, CGP, AQA
- Stomach, pages 100, 103, 148, GCSE Biology; Student Book, Collins, AQA
- Stomach, pages 37-39, 48, GCSE Biology; Third Edition, Oxford University Press, AQA
- Stomach, pages 44, 47, GCSE Combined Science Trilogy 1, Hodder, AQA
- Stomach; acid production, page 85, GCSE Combined Science Trilogy 1, Hodder, AQA