O Level Biology tutor online (5090)
Taught for Cambridge (CAIE).
At a glance
Our O Level Biology tutors teach the complete Cambridge 5090 syllabus, from cells and enzymes to inheritance, biotechnology and ecology, with regular past-paper practice and Paper 4 Alternative to Practical preparation. Classes are live online, 1:1 or in small groups, at times suited to students in Pakistan, the Gulf and the UK.
O Level Biology key facts
| Cambridge (CAIE) | Cambridge O Level Biology (5090), 4 papers/components (official syllabus) |
|---|---|
| May/June series | Exams run from late April to June; results are released in mid-August. |
| October/November series | Exams run in October and November; results are released in mid-January. |
| Topics covered | 19 syllabus topics, with past-paper practice |
| Lesson format | Live online, 1:1 (60 min) or small group (75 min); first class free |
Facts last verified:
O Level Biology is the natural starting point for students aiming at medicine, dentistry, nursing, pharmacy or the life sciences, and it pairs closely with Chemistry. The 5090 syllabus has nineteen topics, beginning with cells and classification and moving through nutrition, transport, gas exchange and respiration in plants and humans, to disease and immunity, coordination, reproduction, inheritance, biotechnology and ecology. The factual load is large, but understanding processes matters as much as memory.
The assessment follows the same pattern as the other O Level sciences. Paper 1 is a 1-hour multiple-choice paper of 40 questions worth 30%. Paper 2, the theory paper, lasts 1 hour 45 minutes and carries 80 marks and 50% of the grade. The remaining 20% is either Paper 3, a practical test, or Paper 4, the Alternative to Practical, which covers biological drawing, food tests, variables in investigations and interpreting data.
Students often lose marks through loose terminology, writing 'food' instead of 'glucose', or saying energy is 'made' rather than released. Genetic crosses, the structure and function of the kidney and the eye, and explaining osmosis precisely are other common problem areas. O Level Biology leads into A Level Biology, which expands cell biology, biochemistry, genetics and physiology considerably, so the precise language and data-handling habits formed now carry straight forward.
How is O Level Biology (5090) examined?
Cambridge O Level Biology (5090)
Official syllabus from Cambridge (CAIE)| Paper | Duration | Marks | Weighting |
|---|---|---|---|
| Paper 1: Multiple Choice40 four-option multiple-choice questions | 1 hour | 40 | 30% |
| Paper 2: TheoryShort-answer and structured questions | 1 hour 45 minutes | 80 | 50% |
| Paper 3: Practical TestLaboratory practical; taken instead of Paper 4 | 1 hour 30 minutes | 40 | 20% |
| Paper 4: Alternative to PracticalWritten paper on experimental skills; taken instead of Paper 3 | 1 hour | 40 | 20% |
Syllabus for examination in 2026, 2027 and 2028. Grades A* to E. Examined in the June and November series.
May/June series
Exams run from late April to June; results are released in mid-August.
October/November series
Exams run in October and November; results are released in mid-January.
Exam facts last verified:
Plan your revision with our exam dates guide, the official O Level grade thresholds and where to find official past papers.
What topics are in O Level Biology?
- 1
Cells
Calculating magnification without converting units, and giving animal cells structures only plant cells have.
- 2
Classification
Misusing dichotomous keys and writing binomial names in the wrong format.
- 3
Movement into and out of cells
Describing osmosis without a partially permeable membrane or the direction of water movement.
- 4
Biological molecules
Mixing up food tests and their positive results, such as forgetting that Benedict's test needs heating.
- 5
Enzymes
Saying enzymes are 'killed' rather than denatured, and not linking active-site shape to specificity.
- 6
Plant nutrition
Omitting light or chlorophyll from photosynthesis and misreading limiting-factor graphs.
- 7
Transport in flowering plants
Confusing xylem and phloem, and explaining transpiration without evaporation from the leaf.
- 8
Human nutrition
Mixing up digestive enzymes and where they act, and confusing digestion with absorption.
- 9
Human gas exchange
Describing breathing with the wrong muscle actions or pressure changes.
- 10
Respiration
Writing that respiration 'produces energy', and mixing up anaerobic products in muscle and in yeast.
- 11
Transport in humans
Tracing blood through the heart in the wrong order and confusing arteries with veins.
- 12
Disease and immunity
Confusing antibodies with antigens, and active with passive immunity.
- 13
Excretion
Confusing excretion with egestion and mislabelling parts of the kidney.
- 14
Coordination and control
Muddling the neurones of a reflex arc, and the pupil and lens changes in the eye.
- 15
Coordination and response in plants
Explaining phototropism without describing how auxin is redistributed.
- 16
Development of organisms and continuity of life
Mixing up flower structures in pollination and the hormones of the menstrual cycle.
- 17
Inheritance
Genetic crosses without parental genotypes, gametes and a clear final ratio.
- 18
Biotechnology and genetic modification
Vague, out-of-order steps when describing genetic modification.
- 19
Relationships of organisms with one another and with the environment
Drawing food-chain arrows the wrong way and explaining pyramid shapes poorly.
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How do our online Biology classes work?
Diagnostic
A short check of what your child already knows against the syllabus.
Topic teaching
Clear explanations on a shared whiteboard, one topic at a time.
Past-paper practice
Exam questions from your board, timed and marked to the mark scheme.
Feedback
What went well, what to fix and what to practise before next class.
Who teaches O Level Biology?
5 years- Biology
How do you get top marks in O Level Biology?
Use exact biological terms such as 'glucose', 'partially permeable membrane' and 'denatured'; everyday words rarely score.
When describing a graph, quote values with units at key points and describe the trend before explaining it.
Set out genetic crosses in full: parental phenotypes and genotypes, gametes, a Punnett square and the final ratio or probability.
In Paper 4 drawings, use a sharp pencil, clean continuous lines, no shading and proportions that match the specimen.
For investigation questions, name the independent, dependent and controlled variables and say how each control is kept constant.
Use the mark allocation as a checklist: a 4-mark explanation needs four distinct, linked points.
How much does O Level Biology tutoring cost?
Prices shown in US dollars
- Recommended
One-to-one
Fully personalised to your child
USD 28 / class
- 60-minute live classes at times you choose
- A plan built from a diagnostic of your child's gaps
- Past-paper practice marked against the mark scheme
- Progress notes for parents
Small group
Up to 6 students, 8 live classes a month
USD 8 / class
- 75-minute live classes, 8 per month
- Taught to your exam board and syllabus code
- Weekly past-paper questions with feedback
- Class recordings and notes
Intensive exam prep
12 one-to-one classes a month before exams
USD 25 / class
- Three 60-minute classes a week
- Timed past papers and full mock exams
- Topic-by-topic weak-spot drills
- Pack discount of 10% applied
Prices are per class unless shown per month: one-to-one classes are 60 minutes and group classes 75 minutes. Your trial class is free and doesn't turn into a paid plan by itself. Pricing FAQ
O Level Biology FAQs
How many papers are there in O Level Biology 5090?
O Level Biology 5090 has three components: Paper 1 Multiple Choice (1 hour, 40 marks, 30%), Paper 2 Theory (1 hour 45 minutes, 80 marks, 50%) and a practical paper worth 20%. The practical is either Paper 3, a laboratory test, or Paper 4, the written Alternative to Practical. This applies to the syllabus for 2026, 2027 and 2028.
Is O Level Biology hard?
O Level Biology is not mathematically demanding, but it has a large amount of content and requires precise scientific language. Most students find it manageable if they learn topic by topic and test themselves often. Common difficulties include genetics, transport and coordination systems, and data-response questions, so regular past-paper practice well before the exam is essential.
How can I get an A* in O Level Biology?
Students aiming for an A* in O Level Biology need full syllabus coverage, exact terminology and confident data handling. Active recall, such as flashcards and self-testing, works better than rereading notes. Timed past papers, checked against mark schemes, show which wording earns credit. Our tutors build revision plans around weak topics, but we never promise a particular grade.
What is the Alternative to Practical in O Level Biology?
The Alternative to Practical is Paper 4 of O Level Biology 5090, a 1-hour written paper worth 40 marks and 20% of the grade. It tests practical skills without a laboratory, including biological drawings, food tests, identifying variables, recording and processing data, and planning investigations. Students take it instead of the laboratory-based Paper 3.
Is O Level Biology needed for medicine?
O Level Biology is the usual foundation for medicine, because medical schools commonly require Biology and Chemistry at A Level or FSc, and those courses build on O Level content. Students in Pakistan should also check IBCC equivalence and admissions-test requirements for their route. Skipping O Level Biology makes later Biology study possible but harder.
What topics are in O Level Biology 5090?
O Level Biology 5090 has nineteen topics, including cells, classification, movement into and out of cells, biological molecules, enzymes, plant and human nutrition, transport, gas exchange, respiration, disease and immunity, excretion, coordination in animals and plants, reproduction and development, inheritance, biotechnology and ecology. Any topic can appear on any paper.
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- O Level Chemistry
- A Level Biology
- IGCSE Biology
- A Level Chemistry
- O Level Maths
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