This book was not written for contemporary scientists with a major interest in cell biology. Rather, it was prepared for the serious and inquiring student who mayor may not have had an extensive background in the sciences but who is interested in exploring or reviewing in depth the current body of knowledge about cellular structure and function. We have tried to convey a sense of the expectant excitement that characterizes the modem-day cellular biologist and we regret any scientific jargon that may have crept into the text as a result of this effort. We have selected and assimilated...