Difference between revisions of "Digestion"
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: [[Digestion]] then continues in the [[Small Intestine|small intestine]] where large [[molecule]]s continue to be broken down by [[Digestive Enzyme|digestive enzyme]]s. | : [[Digestion]] then continues in the [[Small Intestine|small intestine]] where large [[molecule]]s continue to be broken down by [[Digestive Enzyme|digestive enzyme]]s. | ||
: Finally, when the [[molecule]]s are small enough, the [[Small Intestine|small intestine]] [[Absorb (biology)|absorbs]] the [[nutrient]]s into the [[blood]] stream. | : Finally, when the [[molecule]]s are small enough, the [[Small Intestine|small intestine]] [[Absorb (biology)|absorbs]] the [[nutrient]]s into the [[blood]] stream. | ||
+ | |||
+ | ===References=== | ||
+ | ====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=27ad53b0283feeff7fc5ae04a9e205f222 ''Digestion, pages 100-103, 170, GCSE Biology; Student Book, Collins, AQA ''] |
Revision as of 09:09, 4 November 2019
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.
About Digestion in Humans
- Digestion begins in the mouth where teeth break the food into smaller pieces in a process called mastication.
- Digestion continues in the stomach where digestive enzymes are added to break down large insoluble molecules into smaller soluble ones.
- Digestion then continues in the small intestine where large molecules continue to be broken down by digestive enzymes.
- Finally, when the molecules are small enough, the small intestine absorbs the nutrients into the blood stream.