Includes bibliographical references (p. 47) and index.

All life is cells -- Cell shapes and sizes -- Looking at cells -- The electron microscope -- Cell structure -- Proteins and DNA -- Cells and energy -- Releasing energy -- Aerobic respiration -- Bacteria: the prokaryotes -- Bacterial metabolism -- Bacterial behaviour -- Viruses -- The eukaryotes -- Inside the cytoplasm -- Plant and animal cells -- Protistans -- Protozoans -- First cells -- Building cells.