Free · Cambridge IGCSE Biology 0610 · Core + Extended
IGCSE Biology Notes (0610)
15 free chapter notes with diagrams, worked examples and quizzes, plus night-before sheets.
Characteristics & classificationCells & organisationMovement into & out of cellsBiological molecules & enzymesPlant nutritionHuman nutritionTransport in plantsTransport in animals
ASby Aiza Ma'am
mentorriyaz.in
mentorriyaz.in
Biology rewards clear diagrams and precise wording. These chapter notes cover the Cambridge IGCSE Biology (0610) course, from classification and cells to biotechnology. Each one opens with a 30-second summary, uses labelled diagrams, and finishes with a quick quiz.
15 chapter notes
- 1Characteristics & classificationThe seven things every living organism does, how scientists name and group organisms, how to use a dichotomous key — and the features of each kingdom, vertebrate and arthropod group.~12 min read · Core + Extended
- 2Cells & organisationWhat is inside animal, plant and bacterial cells and what each part does, how specialised cells are built for their jobs, the levels of organisation — and how to calculate magnification.~9 min read · Core + Extended
- 3Movement into & out of cellsHow substances get across cell membranes: diffusion, osmosis (with water potential) and active transport — including surface area to volume, turgor and plasmolysis, and the potato practical.~12 min read · Core + Extended
- 4Biological molecules & enzymesCarbohydrates, fats, proteins and DNA, the five food tests with the exact colour changes — and enzymes: the lock-and-key model, temperature, pH, denaturation and how to investigate them.~11 min read · Core + Extended
- 5Plant nutritionHow plants make their own food: the photosynthesis equation, what glucose is used for, leaf structure, investigating light, chlorophyll and CO₂, limiting factors — and the minerals plants need.~11 min read · Core + Extended
- 6Human nutritionA balanced diet, scurvy and rickets, the digestive system organ by organ, teeth, enzymes and bile, and how the villi absorb food — with the exact definitions examiners want.~10 min read · Core + Extended
- 7Transport in plantsXylem versus phloem, how a root hair cell takes in water, the transpiration stream, what speeds it up, potometer calculations, wilting and sources and sinks — every diagram you need.~11 min read · Core + Extended
- 8Transport in animalsSingle versus double circulation, a fully labelled heart, how the valves work, coronary heart disease, arteries vs veins vs capillaries, the liver and kidney vessels, blood cells and clotting.~12 min read · Core + Extended
- 9Diseases, immunity & drugsWhat a pathogen is, how disease spreads, how your body fights back (skin, phagocytes, antibodies), how vaccines work, cholera, how we control disease and why antibiotic resistance matters.~14 min read · Core + Extended
- 10Gas exchange, respiration & excretionHow the lungs work and why the alveoli are perfect for gas exchange, what happens when you breathe, how cells release energy with and without oxygen, and how the kidneys and liver remove waste.~19 min read · Core + Extended
- 11Coordination & responseHow impulses travel along neurones, the reflex arc, how the eye focuses, what hormones do, how the body keeps glucose and temperature steady, and how plants respond to light and gravity.~17 min read · Core + Extended
- 12ReproductionAsexual vs sexual reproduction, the parts of a flower, pollination and fertilisation, germination, the human reproductive systems, the placenta, the menstrual cycle and how HIV and other STIs are spread and controlled.~21 min read · Core + Extended
- 13Inheritance, variation & selectionChromosomes, genes and alleles, how mitosis and meiosis differ, how to work out monohybrid crosses with Punnett squares and pedigrees, why organisms vary, and how natural and artificial selection change populations.~24 min read · Core + Extended
- 14Ecology & human influencesHow energy flows through food chains and webs, how pyramids and the carbon and nitrogen cycles work, why populations level off, and how farming, deforestation and pollution threaten biodiversity and what conservation can do.~30 min read · Core + Extended
- 15Biotechnology & genetic modificationHow bacteria, yeast and fungi make useful products, how enzymes are used in fruit juice, washing powders and milk, how fermenters work, and how a gene is cut out, moved and used to make human insulin and better crops.~18 min read · Core + Extended
Night-before sheets
- ★Biology Definitions & Key FactsThe syllabus definitions in exam wording, plus the equations, tests, processes and numbers that come up every year. Learn the definitions word for word.
- ★Biology ATP Shortcuts (Paper 6)The practical skills sheet: biological drawings, magnification, variables, tables and graphs, the classic practicals and how to plan and evaluate. Written for the practical and alternative-to-practical papers.
Frequently asked questions
Are these IGCSE Biology notes free?
Yes. Every chapter note is free to read online and to save as a PDF. They are free to share with friends, but not to sell.
Do the notes cover both Core and Extended?
Yes, in one note. Extended-only material carries an EXTENDED tag, so Core students can skip it.
Which syllabus do the notes follow?
Cambridge IGCSE Biology (0610).
How do I download a note as a PDF?
Tap Download PDF at the top of any note. The PDF file saves straight to your phone or computer, ready to print or revise offline.
How should I use these notes?
Read a chapter note, do the quick check, practise a paper with the Paper Generator, then finish with the night-before sheet.
Who writes the notes?
Aiza Shaikh ("Aiza Ma'am"), an IGCSE Biology educator. The notes are published free on mentorriyaz.in.
Stuck on a chapter?
WhatsApp usMessage us on WhatsApp: one-to-one IGCSE Biology mentoring, online or in Mumbai.