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The Digestive System
Chapter 4
| Question | Answer |
|---|---|
| What is a System? | A system is a group of organs working together |
| Define 'Digest' | To Break down large food particles into smaller food particles |
| Name three things we need food for | Energy, Growth and Repair |
| How is food delivered from the mouth the cells? | Via the blood stream |
| Name the 5 steps to provide nutrition to the body | Ingestion, Digestion, Absorption, Assimilation and Egestion |
| Define ingestion | Taking in food (eating) |
| Define digestion | Breaking down the food |
| Define absorbtion | The food passing into the blood system |
| Define Assimilation | The food being put to use by the cell (energy, growth, repair) |
| Define Egestion | Passing of any unabsorbed food as faeces. |
| Name the organs in the human body | Mouth, Oesophagus, Stomach, Small intestine, Large intestine(colon), Salivary glands, Liver, Gall Bladder and Pancreas |
| Functions of the mouth (3) | Take in food, Crush food(teeth), Introduce Amylase via salivary glands |
| What is Amylase? | Enzyme that breaks down starch to sugar (maltose) |
| What is an Enzyme? | A chemical produced by living organisms that speeds up chemical reactions |
| Define Peristalsis | A muscular movement that pushes food along the digestive system. Only occurs in the digestive system. |
Created by:
MR.BOWEN
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