Download Document 8840400

Name
Date
Digestion and Excretion
How do the digestive and excretory systems help
maintain the body’s homeostasis?
Before You Read
Before you read the chapter, think about what you know about digestion and excretion. Record three
things you already know about digestion and excretion in the first column. Then write three things
that you would like to learn about digestion and excretion in the second column. When you have
completed the chapter, think about what you have learned and complete the What I Learned
column.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
K
What I Know
W
What I Want to Learn
L
What I Learned
Chapter Vocabulary
Lesson 1
Lesson 2
Lesson 3
NEW
NEW
NEW
Calorie
protein
carbohydrate
fat
vitamin
mineral
digestion
mechanical digestion
chemical digestion
enzyme
esophagus
peristalsis
chyme
villi
excretory system
kidney
nephron
urine
ureter
bladder
urethra
ACADEMIC
REVIEW
area
chemical reaction
Digestion and Excretion
145
Lesson 1
Nutrition
Scan Lesson 1. Read the lesson titles and bold words. Look at the pictures. Identify three facts
that you discovered about nutrition. Record these facts in your Science Journal.
Why do you eat?
I found this on page
Relate why your body needs food in the organizer below.
.
Food
made of
that provide
energy, which is
measured in
and
materials for
,
, and
Groups of Nutrients
I found this on page
Identify the 6 groups of nutrients.
.
1.
2.
3.
4.
5.
6.
146
Digestion and Excretion
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
amount needed depends on
Lesson 1 | Nutrition (continued)
Describe the 6 groups of nutrients.
Term
I found this on page
.
Proteins
I found this on page
.
Carbohydrates
Functions
Source
3 forms:
a.
b.
c.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
I found this on page
.
Fats
2 types:
a.
b.
I found this on page
.
Vitamins
I found this on page
.
Minerals
I found this on page
.
Water
I found this on page
.
Infer why it is important to eat a variety of foods that contain
proteins.
Digestion and Excretion
147
Lesson 1 | Nutrition (continued)
Healthy Eating
I found this on page
.
Organize information about the major food groups. In the
center column, circle your gender, and record the daily amount that
you should eat. Give examples of foods from each group in the last
column.
Food Group
Daily Amount
(9 to 13-yearold male/
female)
Example
Grains
Vegetables
apples, strawberries,
oranges
Oils
Meat and beans
I found this on page
.
Explain the importance of eating a balanced diet.
How can a food label help you eat the correct amount of food? Plan a
balanced diet for one day. Include breakfast, lunch, dinner, and a snack. Include the
amounts needed to meet the requirements for your age and gender.
148
Digestion and Excretion
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
milk, cheese, yogurt