A clear and friendly writing style, reader-focused approach, and real-world, health-related applications have made Karen Timberlake a best-selling allied health author. Filled with real-world, health-related applications, this readable presentation breaks allied health chemistry concepts into bite-sized pieces—with a step-by-step approach that provides clear and thorough understanding. Conceptual questions at the end of each chapter test comprehension of the material. New Green Chemistry Notes include “Biodiesel: An Alternative Fuel,” “Greenhouse Gases,” and “Energy Saving Light Bulbs.” The Third Edition is available with MasteringChemistry™, the most advanced chemistry homework and tutorial system available. Measurements, Atoms and Elements, Nuclear Radiation, Compounds and Their Bonds, Chemical Reactions and Quantities, Energy and Matter, Gases, Solutions, Chemical Equilibrium, Acids and Bases, Introduction to Organic Chemistry: Alkanes, Unsaturated Hydrocarbons, Alcohols, Phenols, Ethers, and Thiols, Aldehydes, Ketones, and Chiral Molecules, Carbohydrates, Carboxylic Acids and Esters, Lipids, Amines and Amides, Amino Acids and Proteins, Enzymes and Vitamins, Nucleic Acid and Protein Synthesis, Metabolic Pathways for Carbohydrates Metabolic Pathways and Energy Production, Metabolic Pathways for Lipids and Amino Acids. A useful reference for allied health professionals.