Cell Structure and Function by Microspectrofluorometry provides an overview of the state of knowledge in the study of cellular structure and function using microspectrofluorometry. The book is organized into six parts. Part I begins by tracing the origins of modern fluorescence microscopy and fluorescent probes. Part II discusses methods such as microspectroscopy and flow cytometry; the fluorescence spectroscopy of solutions; and the quantitative implementation of fluorescence resonance energy transfer (FRET) in the light microscope. Part III presents studies on metabolism, including the mechanism of action of xenobiotics; biochemical analysis of unpigmented single cells; and cell-to-cell communication in the endocrine and the exocrine pancreas. Part IV focuses on applications of fluorescent probes. Part V deals with cytometry and cell sorting. It includes studies on principles and characteristics of flow cytometry as a method for studying receptor-mediated endocytosis; and flow cytometric measurements of physiologic cell responses. Part VI on bioluminescence discusses approaches to measuring chemiluminescence or bioluminescence in a single cell and measuring light emitted by living cells.