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| Question | Answer |
| How long is food stored in the stomach? | About 1- 6 hours |
| What is gastric juice produced by? | Special cells in the stomach wall. |
| What does gastric juice contain? | -hydrochloric acid -mucus -digestive juices |
| What is hydrochloric acid? | A strong acid that kills many of the bacteria that may have entered the body with the food. |
| What is mucus? | It creates a layer on the lining of the stomach and prevents the stomach digesting itself |
| What are digestive juices? | They contain chemicals that start the digestion of protein, the main nutrient found in meat. |
| What is the duodenum? | It is the first part of your small intestine. |
| What do the two tubes entering the duodenum carry? | They carry chemicals important for digestion. |
| What is a pancreas? | It is an organ that produces pancreatic juice. |
| What does the pancreatic juice help digest? | -Carbohydrates -Fats -Protein |
| What is bile? | Bile is a greenish liquid responsible for chemical digestion of fats. |
| What does the body use as its main source of energy? | It uses glucose. |
| What is the anus? | A sphincter muscle at the end of the digestive tract. |
| What is vomiting? | Vomiting is a quick way of getting rid of unwanted bacteria in the digestive tract. |
| What does diarrhoea do? | Diarrhoea is another quick way of getting rid of harmful bacteria and viruses. |
| What is a heartburn? | Heartburn is a burning sensation that rises up the oesophagus to your stomach. |
| What is the appendix? | The appendix is a blind-ended tube connected to the large intestine. |
| What are the three disorders of the digestive system? | -Vomiting -Diarrhoea -Heartburn |
| What does the villi do? | It greatly increases the surface area through which nutrients can be absorbed from the small intestine. |
| What happens in the large intestines? | Food you eat are processed into faeces. |
| What is the largest internal organ in the body? | The liver. |
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