Biology (Holt)

CHAPTER 2Chemistry of Life 27

Quick Review Looking Ahead

Answer the following without referring to
earlier sections of your book.
1.Identifyseven properties of life. (Chapter 1,
Section 1)
2.Listseven themes of biology. (Chapter 1,
Section 1)
3.Distinguishbetween metabolism and
homeostasis. (Chapter 1, Section 1)
Did you have difficulty? For help, review the
sections indicated.

Section 1

Nature of Matter

Atoms

Chemical Bonding

Section 2

Water and Solutions

Water in Living Things

Aqueous Solutions

Section 3

Chemistry of Cells

Carbon Compounds

Section 4

Energy and Chemical Reactions

Energy for Life Processes

Enzymes

http://www.scilinks.org

National Science Teachers Association sciLINKS Internet

resources are located throughout this chapter.

Reading Activity

Before you read this chapter, write a short list
of all the things you know about the chemistry
of organisms. Then write a list of the things
that you want to know about the chemistry of
organisms. Save your list, and to assess what
you have learned, see how many questions
you can answer after reading this chapter.

What do these horses have in common with the grass
under their feet? They and all other organisms are
composed of chemical substances that include water,
carbohydrates, proteins, and fats.

Chemistry

of Life

CHAPTER

2

4B