Current Topics in Bioenergetics

Volume 2

1st Edition - January 1, 1967
Editor: D. R. Sanadi
Language: English
eBook ISBN:
9 7 8 - 1 - 4 8 3 2 - 2 4 7 3 - 2

Current Topics in Bioenergetics, Volume 2 provides information pertinent to biological energy transduction, both at the molecular level and in systems having a higher degree of… Read more

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Current Topics in Bioenergetics, Volume 2 provides information pertinent to biological energy transduction, both at the molecular level and in systems having a higher degree of organization. This book presents the contractile mechanisms in cilia and flagella. Organized into 10 chapters, this volume begins with an overview of the concept of the photosynthetic unit that has been deeply involved in all models of photosynthesis. This text then discusses the mechanisms of light-induced conformational changes in chloroplasts, mediated by ion transport. Other chapters consider the conservation and utilization of energy derived from the oxidation of organic substrates by plant mitochondria. This book discusses as well the role of ubiquinone, which has undergone the familiar difficulty in establishing whether a redox active component is an obligatory member of the electron transfer in the respiratory chain. The final chapter deals with the steady state potentials found in the inner ear of mammals. This book is a valuable resource for otolaryngologists and scientists.

List of Contributors

Preface

Contents of Volume 1

Mechanism of Photoinduced Electron Transport in Isolated Chloroplasts

I. Introduction

II. The Electron Transport Path

III. The Photosynthetic Unit—A Model

References

The Energized Movement of Ions and Water by Chloroplasts

I. Introduction

II. Methodology

III. Dark Permeability

IV. Light-Induced Ion Transport

V. Light-Induced Proton Transport in Chloroplasts

VI. Correlation of Light-Induced Proton Transport with Ultrastructural Changes in Chloroplasts

VII. Light-Induced Potassium Efflux

VIII. Light-Induced NH4+ Transport

IX. General Discussion

References

Energy-Linked Reactions of Plant Mitochondria

I. Introduction

II. Survey of General Properties

III. Energy-Linked Reactions

IV. Conclusions

References

18O and Related Exchanges in Enzymic Formation and Utilization of Nucleoside Triphosphates

I. Introduction

II. Types and Mechanisms of Enzyme-Catalyzed Exchanges

III. Methodology for Pi and ATP Exchanges

IV. Exchanges in Catalyses Involving ATP, ADP, Pi, and HOH

References

On the Role of Ubiquinone

I. Intracellular Distribution of UQ

II. Content of UQ in Respiratory Chain Preparations

III. Biologically Active Forms of UQ

IV. Extraction-Reactivation Experiments on the Role of UQ

V. Enzymes Reducing and Oxidizing UQ

VI. Redox Reactions of the Constituent UQ

References

Energy-Linked Reactions in Chemoautotrophic Organisms

I. Introduction

II. Energy-Linked Reactions

III. The Energy-Linked Reduction of Pyridine Nucleotide

IV. The Reversal of the Chemoautotrophic Substrate Oxidation

V. Aerobic Pathways of ATP Generation

VI. The Electron Transfer Chains

VII. The Energy-Linked Reduction of Cytochrome

VIII. The Reaction Sequence

IX. The Functioning Electron Transport System

X. Conclusions

References

Respiration and Adenosine Triphosphate Synthesis in Nuclei

I. Introduction

II. Isolation of Nuclei and Criterion of Purity

III. Evidence for Aerobic ATP Synthesis in Nuclei

IV. Enzymic Composition of Isolated Nuclei

V. Metabolic and Structural Spaces of the Nucleus

VI. Discussion

Addendum

References

The Oscillation of Insect Flight Muscle

I. Introduction

II. The Concept of the Contractile Cycle

III. Oscillation of Muscle

IV. Synchronization of the Oscillatory and Contractile Cycles

V. Events in the Contractile Cycle

VI. Conclusions

References

Contractile Mechanisms in Cilia and Flagella

I. Introduction

II. Structure

III. Chemical Composition

IV. Enzyme Activity

V. Flagellar Movement

VI. Factors Affecting Flagellar Movement

VII. Structure and Function

VIII. Conclusion

References

Genesis of the Cochlear Endolymphatic Potential

I. Introduction

II. Historical Development of the Endocochlear Potential (EP)

III. EP Behavior During Anoxia

IV. Endolymph Formation

V. Biochemical Studies of EP and Endolymph

VI. Quantitative Aspects of Oxygen Effects

VII. Energy Considerations

VIII. Further Theoretical Development

IX. Functional Significance of the Endocochlear Potential and Endolymph Composition

X. Summary

References

Author Index

Subject Index