OCR A A2 Biology

Communication and Homeostasis
1. Communication Basics
2. Nervous System
3. Nervous Impulse
4. Synapses
5. Hormonal System and Glands
6. Homeostasis Basics
7. Control of Blood Glucose
8. Control of Body Temperature
Excretion
1. Liver and Excretion
2. Kidneys and Excretion
3. Kidneys and Water Potential
4. Kidney Failure
5. Detecting Chemicals
Animal Responses
1. Nervous System
2. 'Fight or Flight' Response and Heart Rate
3. Muscle Contraction
4. Nerve Impulses and Muscle Contraction
Plant Responses and Hormones
1. Plant Responses
2. The Effects of Plant Hormones
Photosynthesis
1. Storing and Releasing Energy
2. Light-Independent Reaction
3. Light-Dependent Reaction
4. Limiting Factors for Photosynthesis
5. Photosynthesis Experiments
Respiration
1. Aerobic Respiration
2. Anaerobic Respiration
3. Respiratory Substrates
4. Respiratory Experiments
Cellular Control
1. Regulating Gene Expression
2. Body Plans
3. Gene Mutations
Patterns of Inheritance
1. Epistasis
2. Chi-squared
3. Linkage
4. Types and Causes of Variation
5. Genetic Terms
6. Monogenic Crosses
7. Multiple Allele and Dihybrid Crosses
Evolution
1. Natural Selection and Genetic Drift
2. Hardy-Weinberg Principle
3. Artificial Selection
4. Speciation
Manipulating Genomes
1. Common Techniques
2. DNA Profiling
3. Genetic Engineering
4. Genetically Modified Organisms
5. Gene Therapy
6. Sequencing Genes and Genomes
Cloning and Biotechnology
1. Plant Cloning
2. Animal Cloning
3. Use of Microorganisms
4. Culturing Organisms
5. Immobilised Enzymes
Ecosystems
1. Ecosystems and Energy Flow
2. Recycling in Ecosystems
3. Succession
4. Investigating Ecosystems
Populations and Sustainability
1. Variation in Population Size
2. Conservation of Ecosystems
3. Human Impact on Ecosystems

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