Help your students fine tune their understanding, develop their examination technique and ensure they achieve their best. Written by experienced authors to cover the new CCEA GCSE Biology specifications in full, this Revision Book provides students with all the ingredients for exam success. - Essential facts are carefully organised to help students revise effectively - Helpful tips provide guidance on how students can improve their grades - Sample questions and answers allow students to check their understanding and find out where they can improve CONTENTS: Unit 1 1. Cells 2. Photosynthesis and Plants 3. Nutrition and Health 4. Digestion and Enzymes 5. Breathing and the Respiratory System 6. The Nervous System and Hormones 7. Ecological Relationships and Energy Flow Unit 2 8. Osmosis and Plant Transport 9. Chromosomes, Genes and DNA 10. Cell Division and Genetics 11. Reproduction, Fertility and Contraception 12. Applied Genetics 13. Variation and Selection 14. The Circulatory System 15. Microorganisms, Devence against Disease, Medicines and Drugs Index