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Digestive System
Digestive System for Science 7
| Question | Answer |
|---|---|
| Where do the nutrients from the body go after being broken down? | To the bloodstream |
| What is an ulcer? | When mucus doesn't protect the stomach, and the stomach begins to digest itself |
| What is the path of food? | Mouth-Esophagus-Stomach-Small Intestine-Large Intestine-Rectum-Anus |
| What is the function of the epiglottis? | It is the flap of tissue that prevents food from going down the trachea when swallowing |
| What is the function of the esophagus? | Connects mouth to stomach |
| Why are bacteria helpful? | They help digest food to produce needed vitamins |
| What is gastric juice? | Contains several enzymes helpful to the body |
| How does the pancreas help in digestion? | Produces pancreatic juices that digest proteins, fats, and carbohydrates. It also helps neutralize stomach acids |
| What does hydrochloric acid do to the stomach? | Helps enzymes in gastric juice work better and destroys harmful bacteria |
| What is the duodenum? | First part of small intestine where most digestion occurs |
| Nutrient | Substance in food that produces energy and materials for life's activities |
| Protein | Nutrient made up of amino acids, used throughout the body for growth and to replace/repair cells |
| Amino Acid | The building blocks of protein |
| Carbohydrate | Nutrient that provides most of the body's energy |
| Fat | Nutrient that also provides energy, cushions organs and helps the body absorb vitamins |
| Vitamin | Organic nutrient that promote growth, regulate body functions, and help the body use other nutrients |
| Mineral | Inorganic nutrient that regulate many chemical reactions in the body such as building cells and sending nerve impulses |
| Mechanical Digestion | Physical breakdown of food into smaller particles by chewing and churning |
| Chemical Digestion | Chemical breakdown of food by fluids in the mouth, stomach, and small intestine |
| Enzyme | Protein that speeds up chemical reactions in cells without being changed itself |
| Peristalsis | Muscular contractions that move food throughout the digestive system |
| Chyme | Thin, watery liquid in the digestive tract-partially digested food |
| Villi | Tiny, fingerlike projections on the inner surface of the small intestine |
Created by:
sophialee
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