GCSEBiologyWJEC2. Variation, Homeostasis & Micro-organisms

2. Variation, Homeostasis & Micro-organisms (WJEC GCSE Biology)

Get ready for your WJEC GCSE Biology exams with our revision resources. Find everything you need to revise this topic, so you can go into your exam confident and prepared. Teachers and examiners write all our resources, and they’re designed specifically for each exam board. We regularly update them to match the latest syllabus, so you’ll only revise the most accurate, up-to-date information. Explore the collection below to get started.

2.1 Classification & Biodiversity

  1. Classification of Organisms
  2. Morphological & Behavioural Adaptations
  3. Interactions Between Population & Environment
  4. Biodiversity
  5. Sampling for Abundance and Distribution
  6. Capture/recapture Techniques
  7. Investigating Species Distribution & Abundance
  8. Biological Control Agents

2.2 Cell Division & Stem Cells

  1. Chromosomes
  2. Types of Cell Division
  3. Uncontrolled Mitosis & Cancer
  4. Stem Cells

2.3 DNA & Inheritance

  1. DNA Structure
  2. Role of the Triplet Code
  3. Process of Genetic Profiling
  4. Uses of Genetic Profiling
  5. DNA Profiling
  6. Genes, Alleles & Other Key Terms in Genetics
  7. Single Gene Inheritance
  8. Polygenic Inheritance
  9. Sex Determination
  10. Artificial Gene Transfer

2.4 Variation & Evolution

  1. Variation in Organisms
  2. Types of Variation
  3. Sexual Reproduction
  4. Mutations
  5. Natural Selection & Evolution
  6. Evolution in Action
  7. Understanding the Human Genome

2.5 Response & Regulation

  1. Sense Organs
  2. The Nervous System
  3. Reflexes
  4. Investigating Factors Affecting Reaction Time
  5. The Eye
  6. Homeostasis
  7. Hormones as Chemical Messengers
  8. Maintaining Blood Glucose Levels
  9. Diabetes
  10. Temperature Regulation
  11. Negative Feedback Mechanisms
  12. Lifestyle Choices & Medical Conditions
  13. Tropisms in Plants

2.6 Kidneys & Homeostasis

  1. Human Excretory System
  2. The Kidneys
  3. Nephron Structure
  4. Filtrate Composition
  5. Removal of Waste
  6. Testing Urine
  7. Regulating Blood Water Content
  8. Treating Kidney Failure
  9. Kidney Transplants
  10. Comparing Dialysis & Transplants

2.7 Micro-organisms & their Applications

  1. Aseptic Techniques
  2. Bacterial Growth
  3. Factors Affecting the Growth of Penicillium
  4. The Effect of Antibiotics on Bacterial Growth

2.8 Disease, Defence & Treatment

  1. Types of Micro-organisms
  2. Pathogens
  3. Common Communicable Diseases
  4. Mechanisms of Defence
  5. Antigens
  6. Do Vaccines Protect you from Disease?
  7. How do Vaccines Work?
  8. Memory Cells & Immune Response
  9. Antibiotics & Disease
  10. Preventing Medical Conditions
  11. New Medicines
  12. Monoclonal Antibodies
  13. Medical Uses of Monoclonal Antibodies
WJEC GCSE Biology Past Papers