AQA A Level Biology Exam Questions By Topic

Biological Molecules: Key Terms, Biological Molecules: Reactions, Monosaccharides, Glucose, The Glycosidic Bond, Chromatography: Monosaccharides, Disaccharides, Starch & Glycogen, Cellulose, Biochemical Tests: Sugars & Starch, Finding the Concentration of Glucose

Lipids, Phospholipids, Biochemical Tests: Lipids

Amino Acids & the Peptide Bond, Chromatography: Amino Acids, Protein Structure & Function, Protein Interactions, Biochemical Tests: Proteins

Many Proteins are Enzymes, Enzyme Specificity, How Enzymes Work, Required Practical: Measuring Enzyme Activity, Drawing a Graph for Enzyme Rate Experiments, Using a Tangent to Find Initial Rate of Reaction, Limiting Factors Affecting Enzymes: Temperature, Limiting Factors Affecting Enzymes: pH, Limiting Factors Affecting Enzymes: Enzyme Concentration, Limiting Factors Affecting Enzymes: Substrate Concentration, Limiting Factors Affecting Enzymes: Inhibitors, Control of Variables & Uncertainty

Nucleotide Structure & the Phosphodiester Bond, DNA: Structure & Function, RNA: Structure & Function, Ribosomes, The Origins of Research on the Genetic Code, The Process of Semi-Conservative Replication, Calculating the Frequency of Nucleotide Bases, The Watson Crick Model

The Structure of ATP, Hydrolysis & Synthesis of ATP, The Properties of Water, Inorganic Ions

The Cell Theory, Structure of Eukaryotic Cells, Specialisation of Eukaryotic Cells, Eukaryotic Cell Organisation, Structure of Prokaryotic Cells, Prokaryotic v Eukaryotic Cells, Viruses

Methods of studying cells, Microscopy & Drawing Scientific Diagrams, Magnification Calculations, Cell Fractionation & Ultracentrifugation

The Cell Cycle & Interphase, The Stages of Mitosis, Cytokinesis, Required Practical: Identifying Mitotic Stages, Investigating Plant Root Tips, Uncontrolled Cell Division & Cancer, Binary Fission, Viral Particle Replication

The Structure of Cell Membranes, Diffusion, Osmosis, Required Practical: Investigating Water Potential, Active Transport & Co-transport, Adaptations for Rapid Transport, Required Practical: Factors Affecting Membrane Fluidity

Cell Recognition, Antigens, Phagocytosis, The T Lymphocyte Response, The B lymphocyte Response, Antibodies, Plasma & Memory Cells

Vaccines, Active & Passive Immunity, HIV, Monoclonal Antibodies, Ethical Issues with Vaccines & Monoclonal Antibodies, ELISA

Surface Area to Volume Ratio, Agar Blocks Practical, Adaptation to Facilitate Exchange, SA:V Ratio & Metabolic Rate, Adaptations of Gas Exchange Surfaces, Gas Exchange vs Water Loss

The Human Gas Exchange System, Dissecting the Gas Exchange System, Microscopy & Gas Exchange Surfaces, Investigating Gas Exchange, The Alveolar Epithelium, Ventilation & Gas Exchange, The Effects of Lung Disease, Pollution & Smoking Data, Risk Factor Data, Correlations & Causal Relationships

Digestion, Enzymes in Digestion, Investigating Digestive Enzymes, Mechanisms of Absorption, Modelling Absorption

Mass Transport, Haemoglobin Structure, The Role of Haemoglobin, The Oxyhaemoglobin Dissociation Curve, The Bohr Effect, Adaptations in Haemoglobin

Mammalian Circulation, The Human Heart, The Cardiac Cycle, Investigating Heart Rate, Blood Vessels, Capillaries & Tissue Fluid, Cardiovascular Disease Data, Required Practical: Dissecting Mass Transport Systems

Transpiration, Potometer Practical, Movement in the Phloem, The Mass Flow Hypothesis, Evaluating the Mass Flow Hypothesis, Tracer & Ringing Experiments

Prokaryotic DNA, Eukaryotic DNA, Mitochondria & Chloroplast DNA, Genes, Genetic Loci, The Triplet Code, Non-Coding DNA

The Genome, The Structure of RNA, Transcription, Eukaryotic & Prokaryotic Transcription, Translation, Nucleic Acid & Amino Acid Sequence Comparison

Genetic Mutations, Mutations in Chromosome Number, Meiosis, Meiosis in Animal & Plant cells, Meiosis: Sources of Genetic Variation, Meiosis Under a Microscope, Comparing Meiosis & Mitosis

Genetic Diversity, Using Logarithms When Investigating Bacteria, Natural Selection, Directional & Stabilising Selection, Environmental Adaption, Required Practical: Aseptic Techniques

Courtship, Phylogenetic Classification, Hierarchy of the Taxa, Evolutionary Relationships

Biodiversity Within a Community, Species Richness, Index of Diversity, Conservation & Farming, Investigating Diversity, Random Sampling, Mean & Standard Deviation, Quantitative Investigations of Variation, Genetic Relationships Between Organisms

The Light-Dependent Reaction, Required practical: Investigating Photosynthetic Pigments with Chromatography, The Light-Independent Reaction, Limiting Factors of Photosynthesis, Required Practical: Investigating the Rate of Photosynthesis

Respiration & Energy, The Stages of Aerobic Respiration, Glycolysis, The Link Reaction, The Krebs Cycle, Oxidative Phosphorylation, Anaerobic Respiration, Required Practical: Investigating Respiration Rate

Primary Producers, Photosynthetic Products, Biomass, Gross Primary Production, Net Primary Production, Trophic Levels, Primary & Secondary Productivity, Calculating Productivity & Efficiency, Farming & Production

Nutrient Cycles, Investigating Minerals & Plant Growth, Microorganisms & Recycling Minerals, Fertilisers

Survival & Response, Growth Factors in Flowering Plants, Indoleacetic Acid (IAA), Taxes & Kineses, Reflex Arcs, Required Practical: Investigating Animal Movement, The Pacinian Corpuscle, Pacinian Corpuscles: Generator Potential, Investigating Touch and Temperature Receptors, The Human Retina, Myogenic Stimulation of the Heart, Heart Rate

Motor Neurone Structure, Resting Potential, Action Potentials, Nerve Impulse Transmission, Speed of Impulse Conduction, Calculating Maximum Impulse Frequency, Synapse Structure, Synaptic Transmission, Drugs & Synapses, Neuromuscular Junctions

Antagonistic Muscles, The Structure of Skeletal Muscle, Skeletal Muscle Under a Microscope, Muscle Contraction, Slow & Fast Skeletal Muscles, Investigating Muscle Fatigue

Principles of Homeostasis, Negative Feedback, Glucose Concentration & Insulin, Glucose Regulation: Glucagon, Glucose Regulation: Adrenaline, Glucose Regulation: the Liver, Diabetes, Required Practical: Determining the Concentration of Glucose in Urine, Nephron Structure, Nephron Function, Control of Blood Water Potential

Key Terms in Genetics, Predicting Inheritance: Monohybrid Crosses, Predicting Inheritance: Dihybrid Crosses, Predicting Inheritance: Test Crosses, Investigating Genetic Ratios, The Chi-squared Test

Populations, Gene Pools & Allele Frequency, Hardy-Weinberg

Genetic Variation, Natural Selection, Types of Selection, Types of Speciation, Investigating Allele Frequencies

Ecosystems, Carrying Capacity, Estimating the Size of a Population, Succession, Growth Rate of Microorganisms, Conservation & Human Need, Required Practical: Investigating Species Distribution

Genetic Mutations, The Effect of Genetic Mutations

Totipotent Cells, Stem Cells, The Use of Stem Cells, Producing Tissue Cultures of Explants, Regulation of Transcription, Evaluating Data about Genetic Expression, Epigenetics, Epigenetics & Disease, RNA Interference, Two Types of Tumours, Tumour Development

Genome Sequencing Projects, Determining Protein Sequences, Non-Coding DNA & Regulatory Genes, Sequencing Methods

Recombinant DNA Technology, Producing Fragments of DNA, Investigating the Specificity of Restriction Enzymes, Polymerase Chain Reaction, Culture of Transformed Host Cells, Uses of Recombinant DNA Technology, DNA Probes & DNA Hybridisation, Screening Patients, Genetic Counselling & Personalised Medicine, Variable Number Tandem Repeats, Gel Electrophoresis, Genetic Fingerprinting, Uses of Genetic Fingerprinting