Name ______________________________
Date _________________
Study Guide 32.1 Nutrients and Homeostasis
KEY CONCEPT: CELLS REQUIRE MANY DIFFERENT NUTRIENTS.
VOCABULARY
mineral
Calorie
vitamin
MAIN IDEA: Six types of nutrients help to maintain homeostasis.
Fill in the concept map to summarize what you know about the six nutrients.
Six nutrients needed every day
6. vitamins,
water- and fatsoluble
4.
2.
needed for
needed for
1. water
needed for
3.
energy
needed for
5.
needed for
needed for
growth,
repair, enzymes,
hormones
regulate cell
functions, growth,
development
7. Many dietary experts recommend drinking about 8 glasses of water a day. Why
do you need this much fluid to maintain homeostasis?
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8.Explain why vegans, who eat no animal products, might have difficulty obtaining
all 8 essential amino acids from their diet.
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© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Biology
Study Guide B
1
Digestive and Excretory Systems
32.1: Nutrients & Homeostasis
Study Guide B continued
9. What is the difference between saturated and unsaturated fats?
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10. Which of the six nutrients supply the body with energy?
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MAIN IDEA: Meeting nutritional needs supports good health.
11. Why is eating a balanced diet particularly important during pre-teen and
teen years?
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12. Why do most dietary experts recommend that you obtain most of your Calories
from whole grains, vegetables, and fruits?
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13. You are checking the number of Calories, and Calories from fat, on a food label.
What other information do you need to know to get accurate Calorie counts?
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14. How can the information on a food label help you make good eating choices?
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Vocabulary Check
15. The words calorie and Calorie both refer to a unit of energy. What is the
difference in meaning between these two words?
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16. The Latin term vita means “life.” How does this meaning relate to the function of
vitamins?
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© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Biology
Study Guide B
2
Digestive and Excretory Systems
32.1: Nutrients & Homeostasis