// Atlas · Specification Map
Professor Clive Atlas
AQA A-Level Biology · Specification 7402
AQA A-Level Biology (7402)
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├── 3.1 Biological molecules
│ ├── 3.1.1 Monomers and polymers→
│ ├── 3.1.2 Carbohydrates→
│ ├── 3.1.3 Lipids→
│ ├── 3.1.4 Proteins and Enzymes→
│ ├── 3.1.5 Nucleic acids→
│ ├── 3.1.6 ATP→
│ ├── 3.1.7 Water→
│ └── 3.1.8 Inorganic ions→
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├── 3.2 Cells
│ ├── 3.2.1 Cell structure→
│ ├── 3.2.2 All cells arise from other cells→
│ ├── 3.2.3 Transport across cell membranes→
│ └── 3.2.4 Cell recognition and immune system→
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├── 3.3 Organisms exchange substances with their environment
│ ├── 3.3.1 Surface area to volume ratio→
│ ├── 3.3.2 Gas exchange→
│ ├── 3.3.3 Digestion and absorption→
│ └── 3.3.4 Mass transport→
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├── 3.4 Genetic information, variation and relationships
│ ├── 3.4.1 DNA, genes and chromosomes→
│ ├── 3.4.2 DNA and protein synthesis→
│ ├── 3.4.3 Genetic diversity via mutation and meiosis→
│ ├── 3.4.4 Genetic diversity and adaptation→
│ ├── 3.4.5 Species and taxonomy→
│ └── 3.4.6 Biodiversity within a community→
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├── 3.5 Energy transfers in and between organisms
│ ├── 3.5.1 Photosynthesis→
│ ├── 3.5.2 Respiration→
│ ├── 3.5.3 Energy and ecosystems→
│ └── 3.5.4 Nutrient cycles→
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├── 3.6 Organisms respond to changes in their environments
│ ├── 3.6.1 Stimuli and responses→
│ ├── 3.6.2 Nervous coordination→
│ ├── 3.6.3 Skeletal muscles as effectors→
│ └── 3.6.4 Homeostasis→
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├── 3.7 Genetics, populations, evolution and ecosystems
│ ├── 3.7.1 Inheritance→
│ ├── 3.7.2 Populations→
│ ├── 3.7.3 Evolution and speciation→
│ └── 3.7.4 Populations in ecosystems→
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└── 3.8 The control of gene expression
├── 3.8.1 Mutations and protein structure→
├── 3.8.2 Gene expression and control→
├── 3.8.3 Genome projects→
└── 3.8.4 Gene technologies→
Atlas v1 · 2017–2024 dataset · Professor Clive 2026● online · 38 nodes mapped