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Science chapter 3
lesson 1
| Term | Definition |
|---|---|
| Why do you need food | food provides body w/ materials to grow and repair tissues, and provides energy for daily activites |
| Calorie | amount of energy needed to raise temperature of 1 gram of water by 1 degree celcius |
| 1 Calorie | 1000 calories |
| 1 Carbohydrate | 4 calories |
| 1 Fat | 9 calories |
| What nutrients do you need | carbohydrates, fats, proteins, vitamins, minerals, and water |
| Nutrient | substances in food that provide the raw materials and energy that body needs to carryout essential processes |
| Carbohydrates | major source of energy made of carbon, oxygen, hydrogen. -provides raw materials to make cell parts |
| Simple Carbohydrates | called sugars, contain glucose, different sugars convert foods into glucose |
| Glucose | major source of energy for body cells |
| Complex Carbohydrates | Starch and Fiber, body breaks down starches to sugars so their energy can be released, fiber doesn't break down |
| Fats | energy containing nutrients composed of carbon, oxygen, and hydrogen -forms in cell membrane,-protects organs&insloataes body |
| Unsaturated Fats | liquid at room tempature, the healthiest out of the three, cooking oils |
| Saturated Fats | solid at room temperature, meats |
| Trans Fats | made by adding hydrogen to vege oil |
| Cholesterol | waxy, fatlike substance found in products from animals |
| Protiens | nutrients that contain nitrogen, carbon, oxygen, and hydrogen, needed for growth and tissue repair |
| Amino Acids | small inked units, in protien |
| Complete Proteins | have essential amnio acids such as meats, fish, eggs |
| Incomplete Proteins | don't have all essential amino acids such as plants |
| Vitamins | act as helper molecules in your body's chemical reactions |
| Fat-Soluble Vitamins | dissolve in fat, stored in fatty tissues in body: a,d,e,k |
| Water-Soluble Vitamins | dissolve in water, not stored in body: c,b12,b2,b |
| Minerals | nutrients that are not made by living things needed to carry out chemical processes. |
| Water | most important nutrient b/c all body's vital processes take place in it, regulates body temperature, and removes wastes |
Created by:
Ella!
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