WJEC Biology for A2 Level: Revision Workbook

Contents Introduction How to use this book 4 Assessment objectives 5 Preparing for the examination 10 Common exam mistakes 12 PRACTICE QUESTIONS Unit 1: Basic Biochemistry and Cell Organisation Section 1: Chemical elements and biological compounds 13 Section 2: Cell structure and organisation 25 Section 3: Cell membranes and transport 36 Section 4: Enzymes and biological reactions 48 Section 5: Nucleic acids and their functions 61 Section 6: The cell cycle and cell division 72 Unit 2: Biodiversity and Physiology of Body Systems Section 1: Classification and biodiversity 84 Section 2: Adaptations for gas exchange 95 Section 3: Adaptations for transport 108 Section 4: Adaptations for nutrition 126 PRACTICE EXAM PAPERS Unit 1: Basic Biochemistry and Cell Organisation 136 Unit 2: Biodiversity and Physiology of Body Systems 149 ANSWERS Practice questions Unit 1 160 Practice questions Unit 2 174 Practice paper Unit 1 185 Practice paper Unit 2 189 I tr ti o to use this book 4 ssess ent objectives 5 reparing for the exa ination 10 Co on exa istakes 12 PRACTICE QUESTIONS Unit 3: Energy, Homeostasis and the Environment 3.1 Importance of ATP and 3.3 Respiration 13 3.2 Photosynthesis 24 3.4 Microbiology 35 3.5 Population size and ecosystems 44 3.6 Human impact on the environment 55 3.7 Homeostasis and the kidney 63 3.8 The nervous system 74 nit 4: Variation, Inheritance and Options 4.1 Sexual reproduction in humans 85 4.2 Sexual reproduction in plants 94 4.3 Inheritance 101 4.4 Variation and evolution 113 4.5 Application of reproduction and genetics 123 Option A: Immunology and disease 135 Option B: Human musculoskeletal anatomy 142 Option C: Neurobiology and behaviour 148 PRACTICE EXAM PAPERS Unit 3: Energy, Homeostasis and the Environment 154 Unit 4: Variation, Inheritance and Options 168 ANSWERS Practice questions Unit 3 188 Practice questions Unit 4 205 Practice paper Unit 3 219 Practice paper Unit 4 223 | 3 Copyright: Sample material