Free IGCSE Biology Study Tools
Three small tools our tutors wish every student used. Free, no sign-up, and your checklist progress is saved in your browser.
1 · Interactive 0610 Syllabus Checklist
Tick what you could explain without notes. (S) = Supplement (Extended only). Progress saves automatically on this device.
Prefer paper? Printable version here.
1. Characteristics & classification of living organisms
2. Organisation of the organism
3. Movement into & out of cells
4. Biological molecules
5. Enzymes
6. Plant nutrition
7. Human nutrition
8. Transport in plants
9. Transport in animals
10. Diseases & immunity
11. Gas exchange in humans
12. Respiration
13. Excretion in humans
14. Coordination & response
15. Drugs
16. Reproduction
17. Inheritance
18. Variation & selection
19. Organisms & their environment
20. Human influences on ecosystems
21. Biotechnology & genetic modification
2 · Revision-Time Calculator
How many hours per week do you actually need? Honest maths, no scare tactics.
3 · 0610 Topic-Difficulty Explorer
Our team's ranking of how hard each topic is to score in (not to understand), based on where students typically lose marks. 1 = banker marks, 5 = mark-killer.
Characteristics & classification
Mostly recall; keys questions are free marks with care.
Organisation of the organism
Magnification maths trips students who skip unit conversion.
Movement in & out of cells
Osmosis definitions and explanations are the most mark-sensitive wording in the syllabus.
Biological molecules
Food tests are guaranteed marks if you learn colours precisely.
Enzymes
Graph explanation questions demand exact mark-scheme phrasing ("denatured", "active site shape").
Plant nutrition
Limiting-factor graphs and practicals are classic discriminators.
Human nutrition
Lots of content; enzyme/digestion links must be precise.
Transport in plants
Transpiration explanations need cause-and-effect chains, not lists.
Transport in animals
Heart structure is easy; explaining pressure/valve logic is not.
Diseases & immunity
Active vs passive immunity (S) is a perennial 6-mark trap.
Gas exchange in humans
Ventilation mechanics (S) need careful sequencing.
Respiration
"Energy is produced" = instant lost mark. Wording is everything.
Excretion in humans
Nephron detail (S) is heavily tested and easily confused.
Coordination & response
Homeostasis + reflex arc + eye = the biggest Extended question bank in the syllabus.
Drugs
Short topic; antibiotic-resistance logic is the only trap.
Reproduction
Menstrual-cycle hormones (S) need graph fluency.
Inheritance
Punnett squares are mechanical; pedigree and ratio reasoning is where marks die.
Variation & selection
Natural selection answers must follow the full five-step sequence.
Organisms & their environment
Energy-flow calculations and nitrogen cycle (S) reward precision.
Human influences on ecosystems
Eutrophication (S) is a sequencing question in disguise.
Biotechnology & GM
Fermenter conditions are list-learnable marks.