GCSE Biology
Overview
GCSE Biology gives students a deeper understanding of the living world, from microscopic cells to entire ecosystems. Whether studying with AQA or Edexcel, the core themes remain consistent — building scientific knowledge, analytical thinking, and practical skills that prepare students for further study and real-world applications.
Core Themes Across AQA & Edexcel
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Structure and function of animal and plant cells
Prokaryotic vs. eukaryotic cells
Cell division (mitosis) and the cell cycle
Transport across membranes: diffusion, osmosis, active transport
Use of microscopes and culturing microorganisms
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Levels of biological organisation: cells → tissues → organs → systems
Human digestive system and enzyme function
Circulatory system: heart, blood vessels, and blood composition
Plant transport systems: xylem, phloem, and leaf structure
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Types of pathogens and how they cause disease
Immune system and white blood cell function
Vaccination, antibiotics, and drug development
Preventing and treating disease
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Photosynthesis: process, factors affecting rate, and uses of glucose
Aerobic and anaerobic respiration
Energy transfer in living organisms
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Nervous system: reflexes, synapses, and coordination
Hormonal control: endocrine system, blood glucose regulation
Reproductive hormones and fertility treatments
Plant responses to stimuli
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DNA, genes, chromosomes, and genetic inheritance
Genetic diagrams (Punnett squares, family trees)
Variation and natural selection
Evolution and selective breeding
Genetic engineering and biotechnology
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Ecosystems and interdependence
Food chains, food webs, and energy transfer
Biodiversity and human impact on the environment
Waste management, deforestation, and global warming
Working Scientifically
Across all topics, students develop key scientific skills:
Planning and conducting experiments
Analysing data and drawing conclusions
Evaluating methods and understanding limitations
Applying maths in biology (e.g. percentages, graphs, magnification)
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