Difference between revisions of "Stomach"
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==Key Stage 2== | ==Key Stage 2== | ||
===Meaning=== | ===Meaning=== | ||
| − | |||
The [[stomach]] is a part of the [[Digestive System|digestive system]] and digest our food. | The [[stomach]] is a part of the [[Digestive System|digestive system]] and digest our food. | ||
==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| + | [[File:Stomach.png|right|300px|thumb|A computer image of the [[stomach]].]] | ||
The [[stomach]] is an [[organ]] in the [[Digestive System|digestive system]] which breaks down food [[Molecule|molecules]] into small [[Molecule|molecules]] using [[Enzyme|enzymes]]. | The [[stomach]] is an [[organ]] in the [[Digestive System|digestive system]] which breaks down food [[Molecule|molecules]] into small [[Molecule|molecules]] using [[Enzyme|enzymes]]. | ||
| − | === | + | ===Adaptations of the Stomach=== |
| − | : The [[stomach]] produces [[ | + | : The [[stomach]] produces [[Hydrochloric Acid]]. |
| − | : The [[ | + | : The [[Hydrochloric Acid]] in the [[stomach]] kills [[bacteria]] to help prevent us getting sick. |
: The [[stomach]] digests food using [[Digestive Enzyme|enzyme]]s. | : The [[stomach]] digests food using [[Digestive Enzyme|enzyme]]s. | ||
: The [[Digestive Enzyme|enzyme]]s in the [[stomach]] work best in [[acid]]. | : The [[Digestive Enzyme|enzyme]]s in the [[stomach]] work best in [[acid]]. | ||
| + | : The [[stomach]] has a layer of mucus covering it to prevent digestive juices from damaging the lining of the stomach. | ||
| − | ==Key Stage | + | ==Key Stage 4== |
===Meaning=== | ===Meaning=== | ||
The [[stomach]] is an [[organ]] in the [[Digestive System|digestive system]] which breaks down food [[Molecule|molecules]] into small [[Molecule|molecules]] using [[Enzyme|enzymes]]. | The [[stomach]] is an [[organ]] in the [[Digestive System|digestive system]] which breaks down food [[Molecule|molecules]] into small [[Molecule|molecules]] using [[Enzyme|enzymes]]. | ||
===About the Stomach=== | ===About the Stomach=== | ||
| − | : The [[stomach]] produces [[ | + | : The [[stomach]] produces [[Hydrochloric Acid]]. |
| − | : The [[ | + | : The [[stomach]] [[Digestion|digests]] food using [[Digestive Enzyme|digestive enzymes]] including a [[protease]] called [[pepsin]] which breaks down [[protein]]s into [[Amino Acid|amino acids]]. |
| − | + | : 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 [[ | + | : The [[protease]] [[pepsin]] is an [[enzyme]] found in the [[stomach]] which has an [[optimum]] [[pH]] of 1.6. |
| + | |||
| + | ===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 ''] | ||
Latest revision as of 14:31, 22 February 2022
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
A computer image of the stomach.
The stomach is an organ in the digestive system which breaks down food molecules into small molecules using enzymes.
Adaptations of 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.
- The stomach has a layer of mucus covering it to prevent digestive juices from damaging the lining of the stomach.
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