Bobare

These notes provide a clear and focused summary of Unit 2: Cells, based on the AQA A-level Biology specification. They cover the structure and function of eukaryotic and prokaryotic cells, including organelles such as the nucleus, mitochondria, ribosomes, and the cell-surface membrane. Key processes such as cell fractionation, the use of microscopes, and the principles of magnification and resolution are explained in detail. The content also includes the cell cycle, mitosis, and the regulatio...

These notes provide a concise and exam-focused summary of Unit 3: Exchange and Transport Systems, aligned with the AQA A-level Biology specification. They cover the structure and function of gas exchange systems in both single-celled and multicellular organisms, including adaptations in insects, fish, and mammals. Key concepts such as surface area to volume ratio, diffusion gradients, and exchange surfaces are clearly explained. The content also explores the structure of the human lung and ve...

These notes provide a concise summary of Unit 1: Biological Molecules, aligned with the AQA A-level Biology specification. They cover the structure and functions of key biological molecules including carbohydrates, lipids, proteins, and nucleic acids. Topics include monosaccharides, disaccharides, polysaccharides, triglycerides, phospholipids, the roles of enzymes, DNA and RNA structure, and the process of DNA replication. The notes also explain water’s significance and the role of ino...