Anmisiak

Complete bundle of revision notes for Pearson Edexcel A-Level Biology (SNAB 9BN0). Includes clear explanations, labelled diagrams, comparison tables, worked examples and core practical guidance.

32 pages of illustrated revision notes for Topic 7. What's inside: - Joints, antagonistic muscles and synovial joints - The sarcomere and sliding filament theory, with a numbered cross-bridge cycle - Aerobic respiration: glycolysis, link reaction, Krebs cycle, oxidative phosphorylation - Anaerobic respiration, lactate and oxygen debt - Core Practical 16: respirometer, results and evaluation - The heartbeat: myogenic control and the conducting pathway - ECGs: normal and abnormal traces ...

27 pages of illustrated revision notes for Topic 6. What's inside: - Estimating time of death: body cooling curve, rigor mortis, decomposition, forensic entomology and succession - DNA profiling, PCR and reading a DNA profile - Core Practical 14: gel electrophoresis - Bacteria and viruses compared; lambda phage, TMV, Ebola and HIV compared - Tuberculosis and HIV: infection and progression - Barriers to entry and non-specific responses (inflammation, lysozyme, interferon, phagocytosis) ...

26 pages of illustrated revision notes for Topic 5. What's inside: - Ecosystems, distribution, abundance and the niche - Core Practical 10: random quadrats and transects - Interpreting ecological data (Spearman's rank) - Succession - Photosynthesis: chloroplast structure, ATP, light-dependent reactions, chemiosmosis, the Calvin cycle, products and limiting factors - Core Practical 11: the Hill reaction - Gross and net productivity, trophic levels and transfer efficiency calculations...

27 pages of illustrated revision notes for Topic 4. What's inside: - Biodiversity, heterozygosity index and index of diversity, with worked examples - Niches and adaptations, natural selection and evolution - Hardy-Weinberg equation with a worked example - Reproductive isolation and speciation - Classification, the three domains and molecular evidence - Plant cell structure, including middle lamella, plasmodesmata and pits - Starch and cellulose structure - Stem structure: xylem, phlo...

24 pages of illustrated revision notes for Topic 3. What's inside: - Eukaryotic cell ultrastructure and the function of each organelle; recognising organelles in electron micrographs - From gene to secreted protein (rER, Golgi, vesicles) - Prokaryotic cells - Mammalian gametes and fertilisation (acrosome and cortical reactions) - Loci, linked genes and sex-linked inheritance - Meiosis and how it creates variation (independent assortment, crossing over) - The cell cycle and the stages o...

26 pages of illustrated revision notes for Topic 2. What's inside: - Gas exchange surfaces and Fick's law, the mammalian lung, alveoli and their blood supply - Cell membranes (fluid mosaic model), osmosis and all transport across membranes - Core Practical 3: effect of temperature on membrane permeability (beetroot) - DNA, RNA and nucleotides; base pairing in the double helix - Transcription and translation with worked base sequences; the genetic code - Amino acids, peptide bonds and...

24 pages of illustrated revision notes for Topic 1. What's inside: - Mass transport and the properties of water - Blood vessels: artery, vein and capillary structure, with labelled cross-sections and vein valves - The mammalian heart and the cardiac cycle, with a pressure graph showing when each valve opens and closes - Atherosclerosis and the blood clotting cascade - Risk factors for CVD, interpreting health-risk data, studies and perceptions of risk - Diet and energy balance, BMI and ...

18 pages of revision notes organised around Pearson Edexcel Biology A (Salters-Nuffield) Topic 8: Grey Matter. Covers nervous coordination, neurones, action potentials, synapses, vision, plant responses, brain structure and imaging, visual development, animal research ethics, habituation and Core Practical 18, drugs, personalised medicine, GM organisms and nature vs. nurture. Includes labelled diagrams, explanations and revision reminders in a handwriting-style layout on cream squared paper.