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Edexcel IAL Biology · Linear

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Edexcel IAL Biology · Linear course cover

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Unit 1Unit 1: Lifestyle, Transport, Genes and Health29 lessonsUnit 2Unit 2: Cells, Development, Biodiversity and Conservation26 lessonsUnit 3Unit 3: Practical Skills in Biology I27 lessonsUnit 4Unit 4: Energy, Environment, Microbiology and Immunity28 lessonsUnit 5Unit 5: Respiration, Internal Environment, Coordination and Gene Technology36 lessonsUnit 6Unit 6: Practical Skills in Biology II48 lessons
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1

Lifestyle, Transport, Genes and Health

29 lessons
  1. 1.1Unit 1 — Complete A Level and AS sourceFree preview12 minStudy
  2. 1.2SNAB The Circulatory System12 minStudy
  3. Inheritance and gene regulation — topical practice (4 quest…
  4. 1.3SNAB Diet & Health12 minStudy
  5. SNAB Diet & Health - Check yourselfUnit 1 — Molecules, Diet, Transport and Health - Check your…
  6. 1.4SNAB Gas Exchange, Cell Membranes & Transport12 minStudy
  7. SNAB Gas Exchange, Cell Membranes & Transport - Check yours…
  8. 1.5SNAB Proteins12 minStudy
  9. SNAB Proteins - Check yourself
  10. 1.6SNAB Nucleic Acids12 minStudy
  11. SNAB Nucleic Acids - Check yourself
  12. 1.7SNAB Inheritance12 minStudy
  13. 1.8The Importance of Water12 minStudy
  14. 1.9Saccharides12 minStudy
  15. 1.10Core Practical 1: Estimating the Concentration of Sugars and Starch12 minStudy
  16. 1.11Condensation and Hydrolysis12 minStudy
  17. 1.12Triglycerides and Ester Bonds12 minStudy
  18. 1.13The Need for a Circulatory System12 minStudy
  19. 1.14Blood Vessels: Structure and Function12 minStudy
  20. 1.15The Cardiac Cycle12 minStudy
  21. 1.16The Role of Haemoglobin12 minStudy
  22. 1.17Atherosclerosis12 minStudy
  23. 1.18Blood Clotting12 minStudy
  24. 1.19Reducing Risk Factors of CVD12 minStudy
  25. 1.20Dietary Antioxidants and CVD12 minStudy
  26. 1.21Core Practical 2: Investigate the Vitamin C Content of Food and Drink12 minStudy
  27. 1.22Interpreting Data on Risk Factors12 minStudy
  28. 1.23Designing Studies into the Effects of Risk Factors12 minStudy
  29. 1.24Perception of Risk vs Actual Risk12 minStudy
  30. 1.25Data on Cholesterol and Lipoproteins12 minStudy
  31. 1.26Data on Effect of Diet12 minStudy
  32. 1.27Treatments for CVD: Benefits and Risks12 minStudy
  33. 1.28The Electron Transport Chain12 minStudy
  34. 1.29Identification of Active Genes12 minStudy
2

Cells, Development, Biodiversity and Conservation

26 lessons
  1. 2.1Overview: Cells, Development, Biodiversity and Conservation5 minStudy
  2. Cells, Development, Biodiversity and Conservation — Past pa…
  3. 2.2Unit 2 — Complete A Level and AS source12 minStudy
  4. 2.3SNAB Cell Structure & Organisation12 minStudy
  5. SNAB Cell Structure & Organisation - Check yourself
  6. 2.4SNAB Reproduction & Inheritance12 minStudy
  7. Mitosis and stem cells — image-based practice (1 question)
  8. 2.5SNAB Cell Division12 minStudy
  9. SNAB Cell Division - Check yourself
  10. 2.6SNAB Differentiation & Variation12 minStudy
  11. SNAB Differentiation & Variation - Check yourself
  12. 2.7SNAB Biodiversity12 minStudy
  13. SNAB Biodiversity - Check yourself
  14. 2.8SNAB Resources from Plants12 minStudy
  15. SNAB Resources from Plants – Exam questions
  16. 2.9Properties of Gas Exchange Surfaces12 minStudy
  17. 2.10Core Practical 3: Investigating Membrane Structure and Permeability12 minStudy
  18. 2.11Osmosis12 minStudy
  19. 2.12Diffusion, Facilitated Diffusion and Active Transport12 minStudy
  20. 2.13Amino Acids, Proteins and Protein Structure12 minStudy
  21. 2.14Enzymes - Roles and Modes of Action12 minStudy
  22. 2.15Core Practical 4 - Investigating the Rate of Enzyme Reactions12 minStudy
  23. 2.16Nucleotides, DNA and RNA, Base Pairing12 minStudy
  24. 2.17DNA Replication12 minStudy
  25. 2.18The Nature of the Genetic Code12 minStudy
  26. 2.19How Bases Code for a Polypeptide Chain12 minStudy
  27. 2.20Transcription and Translation12 minStudy
  28. 2.21Mutations12 minStudy
  29. 2.22Patterns of Inheritance and Sex Linkage12 minStudy
  30. 2.23Cystic Fibrosis12 minStudy
  31. 2.24Genetic Screening12 minStudy
  32. 2.25Ethical and Social Issues of Genetic Screening12 minStudy
  33. 2.26Transfer of Recombinant DNA into Other Cells12 minStudy
3

Practical Skills in Biology I

27 lessons
  1. 3.1Practical Skills in Biology I5 minStudy
  2. Practical Skills in Biology I — Past papersUnit 3 — Practical Skills in Biology I - Check yourself
  3. 3.2Using a light microscope and cell ultrastructure5 minStudy
  4. Using a light microscope and cell ultrastructure – Exam que…
  5. 3.3Cell Theory12 minStudy
  6. 3.4Levels of Organisation of Cells12 minStudy
  7. 3.5Eukaryotic Cells12 minStudy
  8. 3.6The Rough Endoplasmic Reticulum and Golgi12 minStudy
  9. 3.7Prokaryotic Cells12 minStudy
  10. 3.8Electron Microscopy of Animal Cells12 minStudy
  11. 3.9Microscopy - Magnification and Resolution12 minStudy
  12. 3.10Core Practical 5 - Light Microscopy12 minStudy
  13. 3.11Gene Locus12 minStudy
  14. 3.12Cell Specialisation12 minStudy
  15. 3.13Post-Transcriptional Changes to mRNA12 minStudy
  16. 3.14Gene Interaction and Epigenetics12 minStudy
  17. 3.15Polygenic Inheritance and Continuous Variation12 minStudy
  18. 3.16Meiosis and Variation12 minStudy
  19. 3.17Mammalian Gametes12 minStudy
  20. 3.18Fertilisation in Mammals12 minStudy
  21. 3.19Fertilisation in Flowering Plants12 minStudy
  22. 3.20The Cell Cycle and Mitosis12 minStudy
  23. 3.21Core Practical 6: Observing the Stages of Mitosis12 minStudy
  24. 3.22Calculation of Mitotic Index12 minStudy
  25. 3.23Stem Cells and Cell Potency12 minStudy
  26. 3.24Core Practical 15: Investigation of Respiration in Yeast12 minStudy
  27. 3.25Core Practical 16: Respirometer to Calculate RQ12 minStudy
  28. 3.26Core Practical 17: The Effects of Exercise12 minStudy
  29. 3.27Core Practical 18: Amylase in Germinating Cereal Grains12 minStudy
4

Energy, Environment, Microbiology and Immunity

28 lessons
  1. 4.1Unit 4 — Complete A Level and AS source12 minStudy
  2. 4.2Photosynthesis12 minStudy
  3. Photosynthesis - Check yourself
  4. 4.3Ecosystems & Energy Transfer12 minStudy
  5. Ecosystems & Energy Transfer - Check yourself
  6. 4.4Climate Change12 minStudy
  7. 4.5Evolution12 minStudy
  8. Evolution - Check yourself
  9. 4.6Microorganisms & Immunity12 minStudy
  10. Microorganisms & Immunity - Check yourself
  11. 4.7Forensics12 minStudy
  12. Forensics – Exam questions
  13. 4.8Plant Cell Structure12 minStudy
  14. 4.9Electron Microscopy of Plant Cells12 minStudy
  15. 4.10Starch and Cellulose: Structure and Function12 minStudy
  16. 4.11Properties of Cellulose and Plant Fibres12 minStudy
  17. 4.12The Vascular Structure of Plants12 minStudy
  18. 4.13Core Practical 7: Identifying Tissue Types Within Stems12 minStudy
  19. 4.14Plant-Based Products for Sustainability12 minStudy
  20. 4.15Water and Inorganic Ions in Plants12 minStudy
  21. 4.16Core Practical 8: Determining the Tensile Strength of Plant Fibres12 minStudy
  22. 4.17Bacterial Growth Conditions12 minStudy
  23. 4.18Plant Products with Antimicrobial Properties12 minStudy
  24. 4.19Core Practical 9: Antimicrobial Properties of Plants12 minStudy
  25. 4.20Development of Drugs and Drug Testing12 minStudy
  26. 4.21The Three Domains of Life12 minStudy
  27. 4.22The Variety of Life12 minStudy
  28. 4.23Biodiversity and Endemism12 minStudy
  29. 4.24Species Richness and Heterozygosity Index12 minStudy
  30. 4.25Index of Biodiversity12 minStudy
  31. 4.26Ecological Niches and Adaptations12 minStudy
  32. 4.27Hardy-Weinberg Equation12 minStudy
  33. 4.28Roles of Seed Banks and Zoos in Conservation12 minStudy
5

Respiration, Internal Environment, Coordination and Gene Technology

36 lessons
  1. 5.1Unit 5 — Complete A Level and AS source12 minStudy
  2. 5.2Muscles & Movement12 minStudy
  3. Muscles & Movement - Check yourself
  4. 5.3Respiration12 minStudy
  5. Respiration - Check yourself
  6. 5.4Exercise12 minStudy
  7. Exercise - Check yourself
  8. 5.5Homeostasis12 minStudy
  9. 5.6Response to the Environment12 minStudy
  10. Response to the Environment - Check yourself
  11. 5.7The Brain, Behaviour & Disease12 minStudy
  12. The Brain, Behaviour & Disease – Exam questions
  13. 5.8Photosynthesis: Overview12 minStudy
  14. 5.9The Role of ATP in Photosynthesis12 minStudy
  15. 5.10Photosynthesis: Light-Dependent Stage12 minStudy
  16. 5.11Photosynthesis: Light-Independent Stage12 minStudy
  17. 5.12Chloroplasts12 minStudy
  18. 5.13Absorption and Action Spectra12 minStudy
  19. 5.14Separation of Photosynthetic Pigments with Chromatography12 minStudy
  20. 5.15Core Practical 10: Rate of Photosynthesis12 minStudy
  21. 5.16Ecological Productivity12 minStudy
  22. 5.17Energy and Biomass Transfers12 minStudy
  23. 5.18Ecology: Key Terms12 minStudy
  24. 5.19Factors Affecting Populations12 minStudy
  25. 5.20Niche12 minStudy
  26. 5.21Core Practical 11: Quadrat and Transect Study12 minStudy
  27. 5.22Ecological Succession12 minStudy
  28. 5.23Evidence for Climate Change12 minStudy
  29. 5.24Contentious Issues in Environmental Science12 minStudy
  30. 5.25Examples of Sustainable Conservation12 minStudy
  31. 5.26Anthropogenic Climate Change12 minStudy
  32. 5.27Carbon Cycle and Environmental Management12 minStudy
  33. 5.28Models for Predicting Climate Change12 minStudy
  34. 5.29How Climate Change Affects Species12 minStudy
  35. 5.30The Effect of Temperature on Enzyme Reactions12 minStudy
  36. 5.31Core Practical 12: Effect of Temperature on Development12 minStudy
  37. 5.32Mutation, Natural Selection and Evolution12 minStudy
  38. 5.33Isolation and Speciation12 minStudy
  39. 5.34Overview of Respiration12 minStudy
  40. 5.35Control of Gene Expression12 minStudy
  41. 5.36Nervous and Hormonal Coordination12 minStudy
6

Practical Skills in Biology II

48 lessons
  1. 6.1Practical Skills in Biology II15 minStudy
  2. Practical Skills in Biology II — Past papersUnit 6 — Practical Skills in Biology II - Check yourself
  3. 6.2Culturing Microorganisms12 minStudy
  4. 6.3Measuring the Growth of Microorganisms12 minStudy
  5. 6.4The Bacterial Growth Curve12 minStudy
  6. 6.5Core Practical 13: Rate of Growth of Microorganisms12 minStudy
  7. 6.6Comparison of Bacterial and Viral Structure12 minStudy
  8. 6.7Tuberculosis and HIV12 minStudy
  9. 6.8Pathogens: Routes of Entry12 minStudy
  10. 6.9Non-Specific Immune Responses12 minStudy
  11. 6.10Specific Immune Responses12 minStudy
  12. 6.11Lymphocytes: Types and Roles12 minStudy
  13. 6.12Developing Immunity12 minStudy
  14. 6.13Pathogens vs Hosts: An Evolutionary Race12 minStudy
  15. 6.14Core Practical 14: The Effects of Different Antibiotics12 minStudy
  16. 6.15Current Usage of Antibiotics12 minStudy
  17. 6.16The Role of Microorganisms12 minStudy
  18. 6.17Polymerase Chain Reaction12 minStudy
  19. 6.18Gel Electrophoresis in Forensics12 minStudy
  20. 6.19DNA Profiling12 minStudy
  21. 6.20Types of Data Provided by Forensic Analysis12 minStudy
  22. 6.21Link Reaction and Krebs Cycle12 minStudy
  23. 6.22Respiratory Quotient12 minStudy
  24. 6.23The Musculoskeletal System12 minStudy
  25. 6.24The Muscle Fibre12 minStudy
  26. 6.25The Process of Skeletal Muscle Contraction12 minStudy
  27. 6.26The Role of Muscle in the Cardiac Cycle12 minStudy
  28. 6.27Calculation of Cardiac Output12 minStudy
  29. 6.28The Role of Adrenaline12 minStudy
  30. 6.29Negative and Positive Feedback12 minStudy
  31. 6.30The Kidney: Structure12 minStudy
  32. 6.31Urea as a Waste Product12 minStudy
  33. 6.32Selective Reabsorption in the Kidney12 minStudy
  34. 6.33Hormones in Osmoregulation12 minStudy
  35. 6.34Neurones: Types and Functions12 minStudy
  36. 6.35Central and Peripheral Nervous System12 minStudy
  37. 6.36How a Response Is Generated by Effectors12 minStudy
  38. 6.37The Reflex Arc12 minStudy
  39. 6.38The Nerve Impulse12 minStudy
  40. 6.39Myelination and Saltatory Conduction12 minStudy
  41. 6.40Synapses and Neurotransmitters12 minStudy
  42. 6.41The Effects of Drugs on Nervous Transmission12 minStudy
  43. 6.42Detection of Stimuli12 minStudy
  44. 6.43Habituation12 minStudy
  45. 6.44Effects of Plant Hormones12 minStudy
  46. 6.45Drug Production from Genetically Modified Organisms12 minStudy
  47. 6.46Recombinant DNA12 minStudy
  48. 6.47Bioinformatics12 minStudy
  49. 6.48Risks and Benefits of Using GMOs12 minStudy