This textbook provides the first resource to address the examined units of the CCEA A2 level Life and Health Sciences specification. It covers both the Single and Double Award courses, through the study of the following units:• A2 2: Organic Chemistry• A2 3: Medical Physics• A2 4: Sound and Light• A2 5: Genetics, Gene Technology and Stem CellsThe full-colour, illustrated chapters clearly explain the theory for the course, and are supported by worked examples, tips, examination-style questions and answers.The authors are all experienced science teachers and examiners. The book has been through a meticulous quality assurance process prior to publication.Contents:Unit A2 2: Organic Chemistry1 Nomenclature and Structure in Organic Compounds2 Alkanes3 Alkenes4 Polymers5 Alcohols6 Spectroscopic Techniques7 Making and Purifying Organic Compounds – the Preparation of AspirinUnit A2 3: Medical Physics8 Physiological Measurements to Monitor Health9 Diagnostic Imaging Techniques10 Medical Uses of RadiationUnit A2 4: Sound and Light11 Waves12 The Ear and Hearing13 Light in Communication and Radio Waves14 The EyeUnit A2 5: Genetics, Gene Technology and Stem Cells15 DNA and the Genetic Code16 Meiosis and Genetics17 The Application of Genetic Engineering and Gene Therapy18 Gene Cloning, Genetic Fingerprinting and Stem Cell TechnologyAnswers