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Name
Date
Class
Key Concept Builder
LESSON 1
Nutrition
Key Concept Why do you eat?
Directions: On the line before each statement, write T if the statement is true or F if the statement is false.
1. Food contains the nutrients your body needs to function.
2. Activities, such as sleeping and studying, require energy.
3. The energy in food you eat is used for cellular processes and all the activities
you do.
4. The amount of energy in food is measured in nutrients.
5. A Calorie is the amount of energy it takes to raise the temperature of 1 kg of
water by 1°C.
6. The same amount of different foods contains the same amount of Calories.
activity level, and gender.
8. A person with a mass of 48 kg most likely requires more Calories than a person
with a mass of 60 kg.
9. Nutrients are substances that provide energy and materials for cell development,
growth, and repair.
10. The types and amounts of nutrients a person needs depend on age, gender, and
activity level.
11. Men need more calcium and iron than women.
12. If you become less active, you might need more protein in your diet.
16
Digestion and Excretion
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
7. The amount of energy a person needs depends on factors, such as weight, age,
Name
Date
Class
Key Concept Builder
LESSON 1
Nutrition
Key Concept Why does your body need each of the six groups of nutrients?
Directions: Complete this graphic organizer by writing the names of the six groups of nutrients and at least two
good sources for each of them in the correct spaces.
1.
Sources:
6.
2.
Sources:
Sources:
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Nutrients
5.
3.
Sources:
Sources:
4.
Sources:
Directions: On each line, write the name of the nutrient that correctly completes each sentence. Some nutrients
may be used more than once or not at all.
7.
are large molecules that contain carbon, hydrogen, oxygen,
nitrogen, and sometimes sulfur.
8.
are made of amino acids.
9.
are molecules made of carbon, hydrogen, and oxygen.
10.
include starches, sugars, and fibers.
11.
are made of sugar molecules that are linked together.
12.
are often classified as saturated or unsaturated.
Digestion and Excretion
17
Name
Date
Class
Key Concept Builder
LESSON 1
Nutrition
Key Concept Why does your body need each of the six groups of nutrients?
Directions: Work with a partner. Complete this table by writing the functions of each nutrient on the lines
provided.
Nutrients
Functions in the Body
1.
Carbohydrates
2.
Fats
3.
Vitamins
4.
Minerals
5.
Water
6.
18
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Proteins
Digestion and Excretion
Name
Date
Key Concept Builder
Class
LESSON 1
Nutrition
Key Concept Why is eating a balanced diet important?
Directions: Answer each question or respond to each statement on the lines provided.
1. How can the 20 amino acids be divided into two groups?
2. Define vitamins and give three examples of vitamins.
3. Why do the symptoms of vitamin deficiency vary depending on which vitamin is
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
lacking?
4. What is the relationship between the food groups and the nutrient groups? Use one
food group to explain your answer.
5. Why is eating a balanced diet important?
6. How can food labels help you choose foods?
Digestion and Excretion
19