OCR A A2 Biology

OCR A A2 Biology

1. Communication and Homeostasis

   • Communication Basics
   • Nervous System
   • Nervous Impulse
   • Synapses
   • Hormonal System and Glands
   • Homeostasis Basics
   • Control of Blood Glucose
   • Control of Body Temperature

2. Excretion

   • Liver and Excretion
   • Kidneys and Excretion
   • Kidneys and Water Potential
   • Kidney Failure
   • Detecting Chemicals

3. Animal Responses

   • Nervous System
   • 'Fight or Flight' Response and Heart Rate
   • Muscle Contraction
   • Nerve Impulses and Muscle Contraction

4. Plant Responses and Hormones

   • Plant Responses
   • The Effects of Plant Hormones

5. Photosynthesis

   • Storing and Releasing Energy
   • Light-Independent Reaction
   • Light-Dependent Reaction
   • Limiting Factors for Photosynthesis
   • Photosynthesis Experiments

6. Respiration

   • Aerobic Respiration
   • Anaerobic Respiration
   • Respiratory Substrates
   • Respiratory Experiments

7. Cellular Control

   • Regulating Gene Expression
   • Body Plans
   • Gene Mutations

8. Patterns of Inheritance

   • Epistasis
   • Chi-squared
   • Linkage
   • Types and Causes of Variation
   • Genetic Terms
   • Monogenic Crosses
   • Multiple Allele and Dihybrid Crosses

9. Evolution

   • Natural Selection and Genetic Drift
   • Hardy-Weinberg Principle
   • Artificial Selection
   • Speciation

10. Manipulating Genomes

    • Common Techniques
    • DNA Profiling
    • Genetic Engineering
    • Genetically Modified Organisms
    • Gene Therapy
    • Sequencing Genes and Genomes

11. Cloning and Biotechnology

    • Plant Cloning
    • Animal Cloning
    • Use of Microorganisms
    • Culturing Organisms
    • Immobilised Enzymes

12. Ecosystems

    • Ecosystems and Energy Flow
    • Recycling in Ecosystems
    • Succession
    • Investigating Ecosystems

13. Populations and Sustainability

    • Variation in Population Size
    • Conservation of Ecosystems
    • Human Impact on Ecosystems