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Gateway to A*

I have just graduated high school achieving 3A* at A Level in Maths, Chemistry and Biology. I am currently studying Medicine at St George's University of London. Over the 2 years, I have made detailed notes on the OCR Chemistry A specification and AQA Biology specification. I ranked highly in my cohort for Chemistry and Biology (2/122 and 3/91). I hope these notes will help you in your A Level study.

I have just graduated high school achieving 3A* at A Level in Maths, Chemistry and Biology. I am currently studying Medicine at St George's University of London. Over the 2 years, I have made detailed notes on the OCR Chemistry A specification and AQA Biology specification. I ranked highly in my cohort for Chemistry and Biology (2/122 and 3/91). I hope these notes will help you in your A Level study.
A Level Biology Notes - Recombinant DNA Technology
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A Level Biology Notes - Recombinant DNA Technology

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Complete AQA A Level Biology notes on recombinant DNA technology with diagrams, definitions to support your understanding. Details include: Producing DNA fragments In vivo gene cloning Marker genes In vitro gene cloning (PCR) Locating genes Genetic fingerprinting Gel electrophoresis
A Level Biology Notes - Inheritance
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A Level Biology Notes - Inheritance

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Complete AQA A Level Biology notes on inheritance with diagrams, definitions to support your understanding. Details include: Monohybrid and dihybrid inheritance Punnet square Codominance Multiple alleles Autosomal linkage Epistasis Chi Squared Test
A Level Biology Notes - Energy and Ecosystem
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A Level Biology Notes - Energy and Ecosystem

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Complete AQA A Level Biology notes on energy and ecosystem with diagrams, definitions to support your understanding. Details include: Definition of keywords Energy transfer and productivity Nitrogen cycle Phosphate cycle Fertilisers Environmental effects (eutrophication)
A Level Chemistry - Acids and Bases
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A Level Chemistry - Acids and Bases

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Complete OCR A Level Chemistry notes on acids and bases with diagrams, definitions to support your understanding. Details include: Acid dissociation constant Ka Approximations with Ka Ionic product of water Kw.
AS Chemistry - Structure and Bonding
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AS Chemistry - Structure and Bonding

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Detailed explanations of the structure and bonding of different molecules and compounds. Diagrams of different shape of molecules with bond angles, intermolecular forces and electronegativity.
A Level Chemistry - Amines, Amino Acids and Polymers
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A Level Chemistry - Amines, Amino Acids and Polymers

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Complete OCR A Level Chemistry notes on Amines, Amino Acids and Polymers with diagrams, definitions to support your understanding. Details include: Properties of amines and reactions Preparation of aliphatic and aromatic amines Reaction of amine and carboxyl group Amides Optical isomerism Condensation polymers Acids and base hydrolysis of polymers
A Level Chemistry - Rates of Reaction
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A Level Chemistry - Rates of Reaction

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Complete OCR A Level Chemistry notes on rates of reaction with diagrams, definitions to support your understanding. Details include: Order of reaction Rate equation and constant Experimental techniques Initial rates Continuous monitoring Rate determining step Rate constants and temperature Arrhenius equation
A Level Chemistry - Transition Elements
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A Level Chemistry - Transition Elements

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Complete OCR A Level Chemistry notes on transition elements with diagrams, definitions to support your understanding. Details include: d-block elements and their electronic configuration Properties of transition elements Formation and shapes of complex ions (ligands)
AS Biology Notes - Genetics
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AS Biology Notes - Genetics

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Complete AQA A Level Biology notes on genetics with diagrams, definitions to support your understanding. Details include: Gene and genetic code DNA and chromosomes RNA Transcription and translation Gene mutation Genetic variation Genetic diversity Natural selection Statistical tests
AS Biology Notes - Immunity
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AS Biology Notes - Immunity

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Complete AQA A Level Biology notes on immunity with diagrams, definitions to support your understanding. Details include: Defense mechanisms Phagocytosis T-Lymphocytes B-Lymphocytes Antibody structure Vaccination Antibody production HIV Monoclonal antibodies
A Level Biology Notes - Nervous Coordination and Muscles
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A Level Biology Notes - Nervous Coordination and Muscles

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Complete AQA A Level Biology notes on nervous coordination and muscles with diagrams, definitions to support your understanding. Details include: Myelinated motor neuron Resting and action potential Speed of nerve impulses Synapse Inhibition Muscle structure Sliding filament theory Types of muscle fibre
A Level Biology Notes - Populations & Ecosystem
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A Level Biology Notes - Populations & Ecosystem

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Complete AQA A Level Biology notes on populations and ecosystems with diagrams, definitions to support your understanding. Details include: Definition of keywords Predator prey relationships Investigating populations Succession Conservation of habitats
A Level Biology Notes - Gene Expression
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A Level Biology Notes - Gene Expression

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Complete AQA A Level Biology notes on gene expression with diagrams, definitions to support your understanding. Details include: Gene mutations Causes of mutations Stem cells and totipotency Induced pluripotent stem cells Regulation of transcription and translation Effect of oestrogen on gene transcription Epigenetic control of gene expression RNA interference on gene expression Gene expression and cancer Oncogenes and tumour supressor genes Genome projects
AS Chemistry Alkenes
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AS Chemistry Alkenes

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Detailed explanations of Alkenes at AS Level with reaction mechanism, stereoisomerism, tests for alkenes and addition polymerisation.
A Level Chemistry - Buffers
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A Level Chemistry - Buffers

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Complete OCR A Level Chemistry notes on buffers with diagrams, definitions to support your understanding. Details include: Formation of buffers Action of buffers in our body Worked examples of buffer calculations pH curves Indicators Explaining indicator colour changes End point sensitivity Choosing the right indicator
A Level Chemistry - Carbonyl and Carboxylic Acid
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A Level Chemistry - Carbonyl and Carboxylic Acid

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Complete OCR A Level Chemistry notes on carbonyl and carboxylic acids with diagrams, definitions to support your understanding. Details include: Formation of carbonyl compounds Nucleophilic addition mechanism of C=O Reactions of carbonyl compounds Identification of aldehydes and ketones Distinguish between aldehydes and ketones Reaction of carboxylic acids Test for carboxyl group Derivaties of carboxylic acid Acid and base hydrolysis of esters Preparation of esters Acyl chlorides Reactions of acid anhydrides