In Biochemistry, the questions often are more exhilarating than the answers. This Updated Third Edition continues the unique conceptual and organizing framework, "Essential Questions." Guiding students through the density of the material by the use of section head questions, supporting concept statements, and summaries, this focused approach is supported by unparalleled text/media integration through BiochemistryNow, providing students with a seamless learning system. Beautifully and consistently illustrated, this text gives science majors the most current presentation of biochemistry available. Written by a chemist and a biologist, the book presents biochemistry from balanced perspectives. This Updated Edition includes "Emerging Insights into Biochemistry" at the end of each chapter, which present students with the latest advances in biochemical research. The Updated Edition also is enhanced by the power of the online assessment-centered learning tool, BiochemistryNow. This powerful online learning companion helps students gauge their unique study needs and provides them with a Personalized Learning plan that enhances their problem-solving skills and conceptual understanding.

Part I: MOLECULAR COMPONENTS OF CELLS. 1. Chemistry is the Logic of Biological Phenomena. 2. Water--The Medium of Life. 3. Thermodynamics of Biological Systems. 4. Amino Acids. 5. Proteins: Their Primary Structure and Biological Functions. 6. Proteins: Secondary, Tertiary, and Quaternary Structure. 7. Carbohydrates and Glyco-Conjugates of the Cell Surface. 8. Lipids. 9. Membranes and Membrane Transport. 10. Nucleotides and Nucleic Acids. 11. Structure of Nucleic Acids. 12. Recombinant DNA: Cloning and Creation of Chimeric Genes. Part II: PROTEIN DYNAMICS. 13. Enzyme Kinetics. 14. Mechanisms of Enzyme Action. 15. Enzyme Regulation. 16. Molecular Motors. Part III: METABOLISM AND ITS REGULATIONS. 17. Nutrition and the Organization of Metabolism. 18. Glycolysis. 19. The Tricarboxylic Acid Cycle. 20. Electron Transport and Oxidative Phosphorylation. 21. Photosynthesis. 22. Gluconeogenesis, Glycogen Metabolism, and the Pentose Phosphate Pathway. 23. Fatty Acid Catabolism. 24. Lipid Biosynthesis. 25. Nitrogen Acquisition and Amino Acid Metabolism. 26. The Synthesis and Degradation of Nucleotides. 27. Metabolic Integration and Organ Specialization. Part IV: INFORMATION TRANSFER. 28. DNA Metabolism. 29. Transcription and Regulation of Gene Expression. 30. Protein Synthesis. 31. Completing the Protein Life Cycle: Folding, Processing, and Degradation. 32. The Reception and Transmission of Extracellular Information.