This chapter introduces some basic concepts of
chemistry, a science that studies the composition of substances and the changes
that occur as basic elements combine. It explains how substances combine to
make up matter (objectives 1.5), how substances are classified as acid or base
(objective 6), and the organic and inorganic substances that make up the living
cell (objectives 7 and 8).
Knowledge of basic chemical concepts will enhance
your understanding of the functions of cells and of the human body.