All living things on Earth are composed of cells A cell is the simplest unit of a self-contained living organism & the vast majority of life on Earth consists of single-celled microbes mostly bacteria These consist of a simple 'prokaryotic' cell with no nucleus The bodies of more complex plants & animals consist of billions of 'eukaryotic' cells of varying kinds adapted to fill different roles
- red blood cells muscle cells branched neurons Each cell is an astonishingly complex chemical factory the activities of which we have only begun to unravel in the past fifty years or so through modern techniques of microscopy biochemistry & molecular biology In this Very Short Introduction Terence Allen & Graham Cowling describe the nature of cells
- their basic structure their varying forms their division their differentiation from initially highly flexible stem cells their signalling & programmed death Cells are the basic constituent of life & understanding cells & how they work is central to all biology & medicine ABOUT THE SERIES The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area These pocket-sized books are the perfect way to get ahead in a new subject quickly Our expert authors combine facts analysis perspective new ideas & enthusiasm to make interesting & challenging topics highly readable