Difference between revisions of "Digestion"
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===Meaning=== | ===Meaning=== | ||
[[Digestion]] is the process of breaking down large [[insoluble]] [[molecule]]s in food into small [[soluble]] [[molecule]]s that can be [[Absorb (biology)|absorbed]] into the [[blood]] stream. | [[Digestion]] is the process of breaking down large [[insoluble]] [[molecule]]s in food into small [[soluble]] [[molecule]]s that can be [[Absorb (biology)|absorbed]] into the [[blood]] stream. | ||
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| + | ===About Digestion=== | ||
| + | : There are two main types of '''digestion'''; [[Mechanical Digestion|mechanical digestion]] which is to break food down by a mechanical process like chewing and [[Chemical Digestion|chemical digestion]] which is to break down large [[molecule]]s into smaller ones using [[Digestive Enzyme|enzymes]]. | ||
Revision as of 19:03, 5 November 2018
Contents
Key Stage 3
Meaning
Digestion is breaking down food into smaller pieces so it can be absorbed into the blood stream.
About Digestion
- Digestion is done by the digestive systems of animals.
About Digestion in Humans
- Digestion begins in the mouth where teeth break the food into smaller pieces.
- It continues in the stomach where chemicals known as enzymes are added to break down large molecules into smaller ones.
- Digestion then continues in the small intestine where large molecules continue to be broken down.
- Finally, when the molecules are small enough, the small intestine absorbs the nutrients into the blood stream.
Key Stage 4
Meaning
Digestion is the process of breaking down large insoluble molecules in food into small soluble molecules that can be absorbed into the blood stream.
About Digestion
- There are two main types of digestion; mechanical digestion which is to break food down by a mechanical process like chewing and chemical digestion which is to break down large molecules into smaller ones using enzymes.