A level Biology exam revision resources written by A level Examiners


Click to access resources1. ScienceNet - Cell Biology FAQs - ScienceNet provides a database of frequently asked questions in relation to Cell Biology. There's also the option of asking a question, if you can't find what your looking for. (Resource Type: Link / Relevance Score : 5.87)
Click to access resources on topics2. Study Room - Biology - Genes and Genetics - The cell cycle - Explanation of Genes and Genetics, The cell cycle. (Resource Type: Study Room / Relevance Score : 5.44)
Click to access resources on topics3. Study Room - Biology - Biochemistry and Cells - Cell Fractionation - Explanation of Biochemistry and Cells, Cell Fractionation. (Resource Type: Study Room / Relevance Score : 4.95)
Click to access resources on topics4. Study Room - Biology - Energetics - Respiration - Explanation of Energetics, Respiration. (Resource Type: Study Room / Relevance Score : 4.59)
Click to access resources on topics5. Study Room - Biology - Genes and Genetics - Meiosis - Explanation of Genes and Genetics, Meiosis. (Resource Type: Study Room / Relevance Score : 4.55)
Click to access resources on topics6. Study Room - Chemistry - Redox reactions - Cell conventions - Explanation of redox reactions. (Resource Type: Study Room / Relevance Score : 4.43)
Click to access resources7. Chromosome 11 - Genetic Simulation - At the moment, genetic counsellors can find out what diseases babies might be at risk from by investigating the family trees of the parents, as well as by conducting DNA tests. And in the future, we might well be consulting genetic counsellors just as often as we visit our doctors today.

In this activity you play the role of a genetic counsellor. Your task is to investigate the family tree of a set of parents and search for the sickle cell anaemia gene, which is located on Chromosome 11. Don't worry if you don't know much about genetics or sickle cell yet - the thought bubble at the top of the page will give you step by step instructions and you will have constant access to a medical reference book. (Resource Type: Link / Relevance Score : 4.29)
Click to access resources on topics8. Study Room - Chemistry - Extraction of metals - Aluminium - The Extraction of aluminium from its ores (Resource Type: Study Room / Relevance Score : 4.14)
Click to access resources on topics9. Study Room - Biology - Biochemistry and Cells - Cell Structure - Explanation of Biochemistry and Cells, Cell Structure. (Resource Type: Study Room / Relevance Score : 4.01)
Click to access resources on topics10. Study Room - Biology - Organs and Systems - Xylem and Phloem Structure - Explanation of Organs and Systems, Xylem and Phloem Structure. (Resource Type: Study Room / Relevance Score : 3.92)
Click to access resources on topics11. Study Room - Chemistry - Extraction of metals - Conclusion - The Extraction of metals from their ores (Resource Type: Study Room / Relevance Score : 3.88)
Click to access resources on topics12. Study Room - Chemistry - Redox reactions - The standard hydrogen electrode - Explanation of redox reactions. (Resource Type: Study Room / Relevance Score : 3.86)
Click to access exam question13. GCSE, AQA, Higher (Spec B), June 2003 - Cell Structure based question (Resource Type: ExamGCSE / Relevance Score : 3.80)
Click to access resources on topics14. Study Room - Biology - Genes and Genetics - Mitosis - Explanation of Genes and Genetics, Mitosis. (Resource Type: Study Room / Relevance Score : 3.74)
Click to access resources on topics15. Study Room - Biology - Biochemistry and Cells - Prokaryotic - Explanation of Biochemistry and Cells, Prokaryotic. (Resource Type: Study Room / Relevance Score : 3.51)
Click to access resources on topics16. Study Room - Biology - Organisms and Environments - Nutrient Cycles - Nitrogen Cycle - Explanation of Nutrient Cycles, Nitrogen Cycle. (Resource Type: Study Room / Relevance Score : 3.41)
Click to access exam question17. GCSE, AQA, Higher (Spec B), June 2003 - Inheritance based question (Resource Type: ExamGCSE / Relevance Score : 3.31)
Click to access resources on topics18. Study Room - Biology - Energetics - Page 2 - Explanation of Energetics, Page 2. (Resource Type: Study Room / Relevance Score : 3.07)
Click to access resources on topics19. Study Room - Biology - Physiology - Nervous Communication, Nerve Cells - Explanation of Physiology, Nervous Communication- Nerve Cells. (Resource Type: Study Room / Relevance Score : 3.01)
Click to access resources on topics20. Study Room - Biology - Biochemistry and Cells - Eukaryotic - Explanation of Biochemistry and Cells, Eukaryotic. (Resource Type: Study Room / Relevance Score : 3.01)
Click to access resources on topics21. Study Room - Biology - Physiology - Nervous Communication, The resting potential - Explanation of Physiology, Nervous Communication- The resting potential. (Resource Type: Study Room / Relevance Score : 2.94)
Click to access resources22. Catalysis - This section of the schoolscience site looks at catalysis, how heterogeneous and homogeneous catalysts work, plus detail on the industrial processes studied at A level. (Resource Type: Link / Relevance Score : 2.92)
Click to access resources on topics23. Study Room - Biology - Biochemistry and Cells - Cell Techniques - Explanation of Biochemistry and Cells, Cell Techniques. (Resource Type: Study Room / Relevance Score : 2.74)
Click to access resources on topics24. Study Room - Biology - Genes and Genetics - The genetic code and protein synthesis - Explanation of Genes and Genetics, The genetic code and protein synthesis. (Resource Type: Study Room / Relevance Score : 2.65)
Click to access resources on topics25. Study Room - Biology - Organs and Systems - Water and Mineral Ion Transport - Explanation of Organs and Systems, Water and Mineral Ion. (Resource Type: Study Room / Relevance Score : 2.62)
Click to access resources on topics26. Study Room - Biology - Genes and Genetics - From one generation to the next - Explanation of Genes and Genetics, From one generation to the next. (Resource Type: Study Room / Relevance Score : 2.61)
Click to access resources on topics27. Study Room - Biology - Genes and Genetics - Nucleic acids - DNA Replication - Explanation of Nucleic acids, DNA Replication. (Resource Type: Study Room / Relevance Score : 2.58)
Click to access exam question28. GCSE, AQA, Higher (Spec B), June 2003 - Inheritance based question (Resource Type: ExamGCSE / Relevance Score : 2.47)
Click to access resources on topics29. Study Room - Chemistry - Carboxylic Acids And Their Derivatives - Carboxylic acids - Explanation of Carboxylic Acids And Their Reactions. (Resource Type: Study Room / Relevance Score : 2.47)
Click to access resources on topics30. Study Room - Biology - Organs and Systems - Transport in Plants - Explanation of Organs and Systems, Transport in Plants. (Resource Type: Study Room / Relevance Score : 2.35)
Click to access resources on topics31. Study Room - Biology - Behaviour, Reproduction and Health - Human Reproduction - Explanation of Behaviour, Reproduction and Health, Human Reproduction,. (Resource Type: Study Room / Relevance Score : 2.32)
Click to access resources on topics32. Study Room - Biology - Biochemistry and Cells - Movement across membranes - Explanation of Biochemistry and Cells, Movement across membranes. (Resource Type: Study Room / Relevance Score : 2.32)
Click to access resources on topics33. Study Room - Biology - Organs and Systems - Circulation - The heart - Explanation of Organs and Systmes, Circulation, The heart. (Resource Type: Study Room / Relevance Score : 2.27)
Click to access resources on topics34. Study Room - Chemistry - Extraction of metals - The Reactions - The Extraction of aluminium from its ores (Resource Type: Study Room / Relevance Score : 2.19)
Click to access exam question35. GCSE, AQA, Higher (Spec B), June 2003 - Digestion based question (Resource Type: ExamGCSE / Relevance Score : 1.99)
Click to access resources on topics36. Study Room - Chemistry - Kinetics - Introduction - Kinetics (Resource Type: Study Room / Relevance Score : 1.93)
Click to access exam question37. GCSE, AQA, Higher (Spec B), June 2003 - Reproduction in plants based question (Resource Type: ExamGCSE / Relevance Score : 1.84)
Click to access resources on topics38. Study Room - Biology - Biochemistry and Cells - Differences between Prokaryotic and Eukaryotic Cells - Explanation of Biochemistry and Cells, Differences between Prokaryotic and Eukaryotic Cells. (Resource Type: Study Room / Relevance Score : 1.81)
Click to access resources on topics39. Study Room - Biology - Biochemistry and Cells - Polysaccharides - Explanation of Biochemistry and Cells, Polysaccharides. (Resource Type: Study Room / Relevance Score : 1.72)
Click to access resources on topics40. Study Room - Biology - Organs and Systems - Gas Exchange in Mammals - Ventilation in mammals - Explanation of Organs and Systmes, Gas Exchange in Mammals, Ventilation in mammals. (Resource Type: Study Room / Relevance Score : 1.63)
Click to access resources on topics41. Study Room - Biology - Genes and Genetics - Cystic Fibrosis - Explanation of Genes and Genetics, Cystic Fibrosis. (Resource Type: Study Room / Relevance Score : 1.59)
Click to access resources on topics42. Study Room - Biology - Energetics - Light Dependant Reactions - Explanation of Energetics, Light Dependant Reactions. (Resource Type: Study Room / Relevance Score : 1.49)
Click to access resources on topics43. Study Room - Biology - Genes and Genetics - Nucleic acids - Nucleotides - Explanation of Genes and Genetics, Nucleic acids, Nucleotides. (Resource Type: Study Room / Relevance Score : 1.46)
Click to access resources on topics44. Study Room - Biology - Energetics - Light Independant Reactions - Explanation of Energetics, Light Independant Reactions. (Resource Type: Study Room / Relevance Score : 1.44)
Click to access resources on topics45. Study Room - Biology - Organs and Systems - Gas Exchange in Mammals - Exchange in mammals - Explanation of Organs and Systmes, Gas Exchange in Mammals, Exchange in mammals. (Resource Type: Study Room / Relevance Score : 1.43)
Click to access resources on topics46. Study Room - Biology - Organs and Systems - Circulation - Blood Vessels - Explanation of Organs and Systmes, Circulation, Blood Vessels. (Resource Type: Study Room / Relevance Score : 1.37)
Click to access resources on topics47. Study Room - Biology - Biochemistry and Cells - The Plasma Membrane - Explanation of Biochemistry and Cells, Plasma Membrane. (Resource Type: Study Room / Relevance Score : 1.30)
Click to access resources on topics48. Study Room - Biology - Genes and Genetics - Protein synthesis - Explanation of Genes and Genetics, Protein synthesis. (Resource Type: Study Room / Relevance Score : 1.29)
Click to access resources on topics49. Study Room - Physics - Quantum physics - Radioactivity - Explanation of Radioactivity (Resource Type: Study Room / Relevance Score : 1.23)
Click to access resources on topics50. Study Room - Biology - Organs and Systems - Transport of Sugars - Explanation of Organs and Systems, Transport of Sugars. (Resource Type: Study Room / Relevance Score : 1.15)
Click to access resources on topics51. Study Room - Chemistry - Redox reactions - Using standard electrode potentials - Explanation of redox reactions. (Resource Type: Study Room / Relevance Score : 1.14)
Click to access resources on topics52. Study Room - Chemistry - Transition metals - Catalytic behaviour - Catalytic behaviour. (Resource Type: Study Room / Relevance Score : 1.13)
Click to access resources on topics53. Study Room - Physics - Quantum physics - Spectra - Explanation of Spectra (Resource Type: Study Room / Relevance Score : 1.08)
Click to access resources on topics54. Study Room - Physics - Momentum and energy - Gases – Boyle’s law - Explanation of Gases – Boyle’s law (Resource Type: Study Room / Relevance Score : 1.03)
Click to access resources on topics55. Study Room - Physics - Momentum and energy - Thermodynamics - Explanation of Thermodynamics (Resource Type: Study Room / Relevance Score : 1.01)
Click to access resources on topics56. Study Room - Biology - Organs and Systems - The Small Intestine - Explanation of Organs and Systmes, The Small Intestine. (Resource Type: Study Room / Relevance Score : 0.96)
Click to access resources on topics57. Study Room - Physics - Quantum physics - Fission and fusion - Explanation of Fission and fusion (Resource Type: Study Room / Relevance Score : 0.70)
Click to access resources on topics58. Study Room - Physics - Quantum physics - Elementary particles - Explanation of Elementary particles (Resource Type: Study Room / Relevance Score : 0.62)
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