Current Topics in Bioenergetics

Current Topics in Bioenergetics, Volume 4 provides information pertinent to the molecular basis for energy transduction in membranous systems. This book presents the developments of relevant techniques in the field of bioenergetics.

Organized into eight chapters, this volume begins with an overview of nonequilibrium and fluorescent probes that deal with relatively unexplored areas. This text then discusses the problem of pathways and mechanisms of energy transformations in the cell. Other chapters consider the transport of ions across the plasma membrane of nearly all living cells, which is a necessary condition for the maintenance of the vital life processes. This book discusses as well that bacterial synthesis offers basic and valuable information of general significance and remarkably stimulating challenges with direct bearing on different aspects of the problem of the basic mechanisms involved in biological electron transport-coupled energy conversion. The final chapter deals with the general models for the transport of sodium and potassium.

This book is a valuable resource for biologists and biochemists.

Inhalt

List of Contributors
Preface
Contents of Previous Volumes
Nonequilibrium Thermodynamics and Its Application to Bioenergetics
I. Introduction
II. Coupled Phenomena
III. Energy Conversion-General Considerations
IV. Active Transport
V. Oxidative Phosphorylation
VI. Muscular Contraction
VII. Conclusions
References
List of Symbols
The Design and Use of Fluorescent Probes for Membrane Studies
I. Introduction
II. Principles for the Design of Probes
III. Application of Probes to Proteins and Their Models
IV. Uses of Probes for Membranes and Their Models
V. Postscript
References
Energy Transformations in the Respiratory Chain
I. Introduction
II. The Chemical Work of the Redox Chain
III. Conversion of Oxidative Energy into Electrical and Osmotic Forms
IV. On the Problem of Mechanical Work in Mitochondria
V. Heat Production in the Redox Chain
VI. Conclusion
References
Profiles of Mitochondrial Monovalent Ion Transport
I. Introduction
II. Noninduced Transport of Monovalent Cations
III. Introduction of Ion Transport
IV. Energetics and Induced Ion Transport
References
Coupling of Ion and Electron Transport in Chloroplasts
I. Introduction
II. Aspects of Membrane Potentials
III. Chloroplast Ion Transport
References
Energy Conversion Reactions in Bacterial Photosynthesis
I. Introduction
II. Development of the Present Picture
III. Current Models for Energy Coupling
IV. Energy-Linked Ion Movements
V. Energy-Linked Phosphate Metabolism
VI. Other Energy Conversion Reactions
VII. General Conclusions
References
Electrogenic Ion Pumping in Nervous Tissue
I. Introduction
II. Nerve Axons
III. Ganglion Cells
IV. Sensory Receptors
V. Electrogenic Pumps in Central Nervous Function
VI. Criteria for an Electrogenic Pump
VII. Origin of Electrogenicity
VIII. Summary
References
Sequence of Steps in the (Na + K)-Activated Enzyme System in Relation to Sodium and Potassium Transport
I. Introduction
II. General Models for the Transport System
III. The Affinities for Sodium and Potassium
IV. The Effect of Sodium and Potassium on the Requirement for Magnesium and ATP
V. Phosphorylation
VI. Effect of Potassium on the Phosphorylation
VII. Observations on the (NA+K) Activated Enzyme System in Relation to the General Models for Transport
VIII. Fluxes of Sodium and Potassium in the Intact Cell in Relation to the Transport Models
IX. The Molecular Basis for the Transport
X. Conclusion
References
Author Index
Subject Index