BIOS Instant Notes in Biochemistry, Fourth Edition, is the perfect text for undergraduates looking for a concise introduction to the subject, or a study guide to use before examinations. Each topic begins with a summary of essential facts-an ideal revision checklist-followed by a description of the subject that focuses on core information, with clear, simple diagrams that are easy for students to understand and recall in essays and exams. BIOS Instant Notes in Biochemistry, Fourth Edition, is fully up-to-date and covers: Cells Amino acids and proteins Studying proteins Enzymes Membranes and cell signalling DNA structure and replication RNA synthesis and processing Protein synthesis Recombinant DNA technology Carbohydrate metabolism Lipid metabolism Respiration and energy Nitrogen metabolism