2.1 Introduction
1. Give examples of how the study of living materials requires an understanding of chemistry.

2.2 Structure of Matter
2. Describe the relationships among matter, atoms, and molecules.
3. Describe how atomic structure determines how atoms interact.
4. Explain how molecular and structural formulas symbolize the composition of compounds.
5. Describe three types of chemical reactions.
6. Explain what acids, bases, and buffers are.
7. Define pH and be able to use the pH scale.

2.3 Chemical Constituents of Cells
8. List the major inorganic chemicals common in cells and identify the functions of each.
9. Describe the general functions of the four main groups of organic chemicals in cells.