38 1 Food and Nutrition

38–1 Food and Nutrition

A. Food and Energy

Why do we need to eat?

Cells convert…..

How can energy in your food be measured?

Calories- definition- - Symbol- - conversions- - an average teenager needs how many a day?

Why does it matter what kind of food you eat?

The science of nutrition is..

How is energy released in ATP so that cells can use it?

B. Nutrients are what? For what does your body use them? List the six categories here:

1. Water- the most important one! 2. Why is this such an important nutrient?

How much do you need to drink a day?

What is the source of water in our diets?

How does sweat help to maintain homeostasis?

3. Carbohydrates-define… a. examples of simple

b. examples of complex

c. sugars are- d. starches are- they are broken down into… e.What is fiber, and why is it impt. in your diet?-

4. Fats- define… 5. a. why does your body need them? b. c. Saturated means- d. e. Unsaturated means-

6. Proteins-define.. 7. a. List some roles of proteins…

b. Give some examples…

c. They are made up of ..

d. What is an essential amino acid, and from where do you get them?

8. Vitamins- define… 9. a. Where do you get them? b. Vitamin K….. c. Vitamin D… d. Fat-soluble examples and features-

e. Water soluble examples and features-

f. Why should you not take more then the recommended dose?

10. Minerals- define… a. Examples-

b. Does your body metabolize them? How does it lose them and replace them? C. Nutrition and a Balanced Diet

a. Food Guide Pyramid- classifies ……

b. Key point – you should.b..

c. The daily value is…

Concept Map

Section 38-1

Nutrients

include

Carbohydra Fats Proteins Vitamins Minerals tes

include are made of are made using include include

Amino Simple Complex Calcium Iron acids such as such as

Fatty Acids Glycerol Water- Sugars Starches Fat-soluble soluble Fats, Oils, and Sweets (use sparingly) Soft drinks, candy, ice cream, mayonnaise, and other foods in this group have relatively few valuable nutrients.

Milk, Yogurt, and Cheese Group Meat, Poultry, Fish, Dry Beans, Eggs, (2-3 Servings) and Nut Group Milk and other dairy products are rich in (2-3 servings) proteins, carbohydrates, vitamins, and These foods are high in protein. minerals. They also supply vitamins and minerals. Vegetable Group (3-5 servings) Fruit Group Vegetables are a low-fat (2-4 servings) source of carbohydrates, Fruits are good sources of fiber, vitamins, and minerals. carbohydrates, fiber, vitamins and water.

Bread, Cereal, Rice and Pasta Group (6-11 servings) The foods at the base of the pyramid are rich in complex carbohydrates Fats and also provide proteins, Sugar fiber, vitamins, and some s minerals.