O Level Biology: Notes, Worksheets and Quizzes
📘 10 lessons · 🧠 50 quizzes · 📄 10 materials, free samples for this class. Create a free account to open everything.
O Level Biology on QuizByt covers 14 topics, from Cells & Organisation through to Biotechnology & Genetic Modification. It is matched to Cambridge and Oxford standards, built with AI and reviewed by real teachers of the subject. Every topic has a step-by-step lesson to read, practice quizzes at three levels, and printable worksheets with an answer sheet. Quizzes mark themselves and record a score for each topic, so it is clear which part needs more work rather than only that the subject does.
Topics covered in O Level Biology 14
Cells & Organisation
Cell structure, the plant/animal differences, specialised cells and magnification, the foundation the whole syllabus is built on, and an easy source of full marks.
Movement In & Out of Cells
Diffusion, osmosis and active transport, three processes with one comparison table, and the potato experiment the practical paper keeps returning to.
Biological Molecules & Enzymes
The food tests, the structure of the main molecules, and enzyme action with the two graphs, the most reliably examined practical content in the subject.
Plant Nutrition & Transport
Photosynthesis with its limiting factors, leaf structure, and the xylem and phloem, plus the four experiments the practical paper asks you to describe.
Human Nutrition & Transport
Diet, digestion and absorption, then the heart and circulation, two systems that share one idea: surface area and gradients decide everything.
Respiration & Gas Exchange
Aerobic and anaerobic respiration, the breathing mechanism and the alveoli, plus the experiments that prove respiration is happening.
Coordination & Homeostasis
Nerves and hormones, the reflex arc, temperature and glucose control, and plant tropisms, the topic that is really one idea, negative feedback, applied five times.
Reproduction
Asexual and sexual reproduction, flowers and pollination, the human system, the menstrual cycle and pregnancy, a topic of comparisons and adaptations.
Inheritance & Variation
Genes and alleles, mitosis and meiosis, genetic diagrams, and natural selection, the topic with the most marks available for laying work out correctly.
Organisms & Their Environment
Food chains and energy flow, the carbon and nitrogen cycles, populations, and human impact, the section where the marks are in the sequence of events.
Diseases & Immunity
Drugs & Their Effects
Human Influences on Ecosystems
Biotechnology & Genetic Modification
10 lessons, 50 quizzes and 10 worksheets are published for O Level Biology so far, and more are added every month.
📘 Lessons 10
🧠 Quizzes 50
📄 Study Materials 10
O Level Biology: common questions
What does O Level Biology on QuizByt cover?
14 topics, from Cells & Organisation to Biotechnology & Genetic Modification. So far there are 10 lessons, 50 quizzes and 10 printable worksheets for O Level Biology. Each topic has a step-by-step lesson, MCQ quizzes at three levels and a worksheet with an answer sheet.
Is any O Level Biology material free?
Yes. 2 O Level Biology lessons open free with no account, including Cells & Organisation and Movement In & Out of Cells. Signing up is free too, and gives 14 days of full access with no card.
Do the O Level Biology quizzes show the answers?
Yes. Each quiz is marked the moment you finish, shows the right answer to every question with the reason, and records your score for that topic so you can see which part needs more work.
Which standards is O Level Biology written to?
Cambridge O Level, IGCSE and Oxford standards. Every lesson and question is built with AI and reviewed by real teachers of the subject before students see it.
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