In this Very Short Introduction, Terrence Allen and Graham Cowling
offer an illuminating account of the nature of cells--their basic
structure, forms, division, signaling, and programmed death. Allen and
Cowling start with the simple "prokaryotic" cell--cells with no
nucleus--and show how the bodies of more complex plants and animals
consist of billions of "eukaryotic" cells, of varying kinds, adapted to
fill different roles--red blood cells, muscle cells, branched neurons.
The authors also show that each cell is an astonishingly complex
chemical factory, the activities of which we have only begun to unravel
in the past fifty years.