Exam Practice
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AQA A-Level Biology (Paper 1)
Smart practice
A mixed round aimed at your weak spots
Unit 1
Unit 1
Monomers and polymers; carbohydrates
Monomers, polymers and carbohydrates
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Lipids
Lipids
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Nucleic acids are important information-carrying molecules
Structure of DNA and RNA
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DNA replication
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ATP
ATP
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Water; inorganic ions
Water and inorganic ions
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Unit 2
Unit 2
Cell structure
Structure of eukaryotic cells
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Structure of prokaryotic cells and of viruses
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Methods of studying cells
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All cells arise from other cells
All cells arise from other cells
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Transport across cell membranes
Membrane structure, diffusion and osmosis
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Active transport and co-transport
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Cell recognition and the immune system
Antigens, phagocytosis and T lymphocytes
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B lymphocytes, antibodies and vaccination
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HIV, monoclonal antibodies and the ELISA test
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Unit 3
Unit 3
Surface area to volume ratio
Surface area to volume ratio
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Gas exchange
Adaptations of gas exchange surfaces
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Human gas exchange, ventilation and lung disease
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Digestion and absorption
Digestion and absorption
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Mass transport in animals
Haemoglobin and the transport of oxygen
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The heart, cardiac cycle and cardiovascular disease
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Blood vessels and tissue fluid
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Mass transport in plants
Xylem and the cohesion-tension theory
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Phloem and translocation by mass flow
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Unit 4
Unit 4
DNA, genes and chromosomes
DNA, genes and chromosomes
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DNA and protein synthesis
Genome, proteome, transcription and splicing
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Translation: ribosomes, tRNA and ATP
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Genetic diversity can arise as a result of mutation or during meiosis
Gene mutations and chromosome non-disjunction
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Meiosis and genetic variation
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Genetic diversity and adaptation
Genetic diversity and adaptation
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Species and taxonomy
Species and taxonomy
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Biodiversity within a community
Biodiversity within a community
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Investigating diversity
Investigating diversity
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