| A | B |
|---|
| Calorie | the basic unit of food energy |
| Cellulose | a kind of carbohydrate that people cannot digest |
| Cholesterol | a waxy substance made by the body and also found in fatty foods |
| Digestion | the process by which the body breaks down food into nutrients that can be absorbed by the cells |
| Enzyme | a substance that helps to change chemical reaction rates in the body |
| Esophagus | a tube behind the windpipe that carries food from the mouth to the stomach |
| Food Guide Pyramid | shows the kinds of foods and number of servings you should eat in a day |
| Minerals | non-living substances found in small amounts in certain foods |
| Proteins | nutrients in foods that help build body tissue |
| Saliva | the liquid in the mouth that aids digestion |
| Villi | tiny finger shaped structures in the walls of small intestine that absorb digested food into the blood |
| Vitamins | substances found in certain foos that the body needs to function properly and to resist disease |
