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Digestion, Excretion, & Respirtation

Digestion, Excretion, & Respirtation. 4. Calories. You get energy from the food you eat. The energy in food is measured in calories. Vocabulary: calories The unit of measurement of energy in food. Some foods have more calories than others.

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Digestion, Excretion, & Respirtation

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  1. Digestion, Excretion, & Respirtation 4. Calories

  2. You get energy from the food you eat The energy in food is measured in calories

  3. Vocabulary: calories The unit of measurement of energy in food

  4. Some foods have more calories than others A tomato has about 25 calories whereas a cup of ice cream has about 275 calories

  5. You could eat 11 tomatoes to equal the number of calories in a cup of ice cream Your body uses calories for all its activities

  6. Every time your hand moves or your heart beats, some calories are used What happens if your body does not use all the calories in the food you eat?

  7. The unused calories are stored as fat The fat builds up in your body to make “love handles”

  8. How many calories you need depends upon the amount of energy your body needs If you are active, then your body needs lots of energy

  9. The calories you take in will be used up You can eat a lot without getting fat

  10. If you are not very active, your body needs less energy If you eat a lot, all the calories in your food may not get used up

  11. Your body will store the calories as fat Then your weight will spiral up and your body will seem “fluffy”

  12. There are 2 things you can do to lose extra fat You can exercise to use more calories or cut down on high-calories foods

  13. If your body has fewer calories to use then it will have to use up the stored fat Using both methods are the best way to lose weight

  14. Whether you need to lose weight or not, stay away from empty calories Empty calories are found in foods that are high in calories but low in vitamins and minerals

  15. Candy, soft drinks, and other “junk” foods are empty-calorie foods

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