The World of the Cell, Fifth Edition continues the tradition of previous editions widely praised for covering some of the most difficult concepts ?????????????????? bioenergetics, metabolism, enzyme kinetics, thermodynamics, membrane transport, cell signaling, regulatory mechanisms, transcription and translation, signal transduction, and DNA replication and recombination ?????????????????? at the right level. In this new edition, the authors integrate coverage of modern molecular techniques and tools and recent advances without losing students in overwhelming detail that is typically covered in a separate molecular biology course. The World of the Cell's trademark features ?????????????????? Art that Teaches, Multi-level Problem Sets, Quick Check Concept Statements, Guide to Techniques and Methods, and Boxed Essays (Further Insights, Contemporary Techniques, Historical Perspectives, and Clinical Applications) ?????????????????? help students learn processes, not just facts. Features Each chapter is divided into a series of conceptual sections that is highlighted by a Quick Check Concept statement that summarizes the concept to be described, helping students focus on the main points of what they are studying and aiding in review. Revised Multi-level Problem Sets at the end of each chapter help develop students' ability to analyze data, make generalizations and predictions, and apply their understanding to new situations. Techniques are introduced in the context of their use, which assists students' understanding while underscoring the importance of each technique. A Guide to Techniques and Methods helps readers locate the descriptions of experimental techniques and findings that are included in every chapter. Boxed Essays ?????????????????? Further Insights, Contemporary Techniques, Historical Perspectives, Clinical Applications ?????????????????? give students insight into intriguing aspects of cell biology. Modern Design and Art Program. Over 200 newly rendered illustrations and 400 revised figures selected by the authors ?????????????????? including schematic cutaway drawings paired with electron micrographs of cells and numbered process diagrams ?????????????????? reinforce important topics discussed in the text. Most up-to-date coverage on important new topics! All chapters have been thoroughly updated to include new topics, recent advances, and important ethical issues including stem cells, DNA microarrays, apoptosis, genomics and proteomics, and gene therapy. The Cell Place Student CD-ROM and Web site, packaged free with every new copy of the text, features more than 30 animations, interactive tutorials, and quizzes to reinforce text explanations and illustrations and help visual learners understand key topics. Comprehensive Glossary at the end of the book allows students access to all key terms. The text glossary is also available on the FREE Cell Place Student CD-ROM and Web site. Contents A Preview of the Cell. The Chemistry of the Cell. The Macromolecules of the Cell. Cells and Organelles. Bioenergetics: The Flow of Energy in the Cell. Enzymes: The Catalysts of Life. Membranes: Their Structure, Function and Chemistry. Transport Across Membranes: Overcoming the Permeability Barrier. Signal Transduction Mechanisms: I. Electrical Signals in Nerve Cells. Signal Transduction Mechanisms: II. Messengers and Receptors. Beyond the Cell: Extracellular Structures, Cell Adhesion and Cell Junctions. Intracellular Compartments: The Endoplasmic Reticulum, Golgi Complex, Endosomes, Lysosomes, and Peroxisomes. Chemotrophic Energy Metabolism: Glycolysis and Fermentation. Chemotrophic Energy Metabolism: Aerobic Respiration. Phototropic Energy Metabolism: Photosynthesis. The Structural Basis of Cellular Information: DNA, Chromosomes, and the Nucleus. The Cell Cycle: DNA Replication, Mitosis, and Cancer. Sexual Reproduction, Meiosis, and Genetic Recombination. Gene Expression: I. The Genetic Code and Transcription. Gene Expression: II. Protein Synthesis and Sorting. The Regulation of Gene Expression. Cytoskeletal Systems. Cellular Movement: Motility and Contractility.