This bundle contains a comprehensive overview of all topics under the “Organisms Exchange Substances with their Environment” section of the AQA A-Level Biology specification. It includes a detailled overview of the following: 3.3.1 Surface Area to Volume Ratio 3.3.2 Gas Exchange 3.3.3 Digestion and Absorption 3.3.4 Mass Transport: 3.3.4.1 Mass Transport in Animals 3.3.4.2 Mass Transport in Plants All information students will ever need for this section is contained within the documents above.

This bundle contains a comprehensive overview of all topics under the “Cells” section of the AQA A-Level Biology specification. It includes a detailled overview of the following: 3.2.1 Cell Structure: 3.2.1.1 Structure of Eukaryotic Cells 3.2.1.2 Structure of Prokaryotic Cells and of Viruses 3.2.1.3 Methods of Studying Cells 3.2.2 All Cells Arise from Other Cells 3.2.3 Transport Across Cell Membranes 3.2.4 Cell Recognition and the Immune System All information students will ever need for this section is contained within the documents above.

This bundle contains a comprehensive overview of all topics under the “Biological Molecules” section of the AQA A-Level Biology specification. It includes a detailled overview of the following: 3.1.1 Monomers and Polymers 3.1.2 Carbohydrates 3.1.3 Lipids 3.1.4 Proteins: 3.1.4.1 General properties of proteins 3.1.4.2 Many proteins are enzymes 3.1.5 Nucleic acids are important information-carrying molecules: 3.1.5.1 Structure of DNA and RNA 3.1.5.2 DNA replication 3.1.6 ATP 3.1.7 Water 3.1.8 Inorganic ions All information students will ever need for this section is contained within the documents above.