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Digestion and Enzyme
JC Chapter 4
| Term | Definition |
|---|---|
| Digestion | The breakdown of food. |
| Physical Digestion | Breakdown of food by mechanical means (teeth) |
| Chemical Digestion | Breakdown of food by enzymes (saliva) |
| The mouth | Carries out physical and chemical digestion |
| The oesophagus | Moves food to the stomach |
| Liver | Makes bile which breaks down fats |
| Pancreas | Makes enzymes which digest food |
| 1st part of small intestine | Breakdowns the food |
| Stomach | Hydrochloric acid softens the food and kills bacteria. |
| 2nd part of small intestine | Allows the food to be absorbed from the intestine into the bloodstream. |
| Incisors | Cut and slice food |
| Canines | Grip and tear food |
| Premolars & Molars | Chew, crush and grind food |
| Enzymes | Proteins that speed up chemical reactions. substance produced= product substances acted on = substrate enzyme amylase acts on starch to produce a reducing sugar called maltose |
Created by:
juliabrechelke