中文（繁體）
中文（简体）
English
IGCSE Biology Past Papers & Drilling (Paper 2): Cells, Enzymes, Genetics
TUTORZONE ORIGINAL DRILLING MOCK · CAMBRIDGE IGCSE BIOLOGY (0610) PAPER 2
Written to the Cambridge 0610 syllabus: Paper 2 Multiple Choice (Extended), 40 marks, 45 min, 30% (40 four-option items); plus Paper 4 Theory (80, 50%) and Paper 5/6 Practical (40, 20%). This is a Paper 2 drilling mock: 6 questions demonstrating the 40-mark core concepts, with answers and techniques.
What is in IGCSE Biology (0610) Paper 2?
Direct answer: Paper 2 Multiple Choice (Extended), 40 marks, 45 min, 30% (40 four-option items).
Assessment at a glance (2027)
| Component | Content | Weighting | Duration |
|---|---|---|---|
| Paper 2 (Multiple Choice, Extended) | 40 four-option items, 40 marks | 30% | 45 min |
| Paper 4 (Theory, Extended) | Short-answer and structured, 80 marks | 50% | 1 h 15 min |
IGCSE Biology Paper 2 drilling technique: 40 questions in 45 minutes is about 68 s each. Photosynthesis is CO2 + water -> glucose + oxygen; know the enzyme optimum; keep dominant (expressed alone) and recessive (only paired) apart.
How this paper was built
This is a TutorZone original drilling mock: the questions follow the Cambridge 0610 structure (Paper 2, 40 marks, 30%) and the answers are our own, not Cambridge past papers or marking references.
Pacing
| Section | Marks | Suggested time | What to do first |
|---|---|---|---|
| Paper 2 (Multiple Choice, Extended) | 30% | about 68 s per question | core + supplement content |
| Paper 4 (Theory, Extended) | 50% | about 9 min per question | explanation + application |
What is the photosynthesis equation?
Direct answer: carbon dioxide + water -> (light, chloroplast) -> glucose + oxygen.
Paper 2: concept drilling (6 demonstrated)
Write full equations; keep dominant/recessive apart.
Question 1 (7 marks)
State three differences between a plant cell and an animal cell.
Question 2 (7 marks)
Explain how temperature affects enzyme activity.
Question 3 (7 marks)
Write the word equation for photosynthesis.
Question 4 (6 marks)
Explain why the breathing rate rises during exercise.
Question 5 (7 marks)
Explain the difference between dominant and recessive alleles.
Question 6 (6 marks)
Explain the 10% rule of energy transfer in a food chain.
Dominant vs recessive alleles?
Direct answer: a dominant allele is expressed even alone; a recessive one only when both are recessive.
Paper 2 answers
Question 1
(1) A plant cell has a cell wall (3). (2) It has chloroplasts (2). (3) It has a large vacuole (2).
Question 2
Rising temperature speeds the reaction up to the optimum (3.5); too high a temperature denatures the enzyme (3.5).
Question 3
Carbon dioxide + water -> (light, chloroplast) -> glucose + oxygen (7).
Question 4
Muscles need more oxygen for respiration (3) and more carbon dioxide must be removed (3).
Question 5
A dominant allele is expressed even when alone (3.5); a recessive allele is expressed only when both are recessive (3.5).
Question 6
Only about 10% of energy passes to the next trophic level; the rest is lost through respiration, heat and waste (6).
Which topics does this paper drill?
Direct answer: plant and animal cells, enzymes, photosynthesis, respiration, genetics and ecological energy flow.
Where these marks are usually lost
| Mistake | What it looks like | What it costs | Instead |
|---|---|---|---|
| Photosynthesis missing conditions | Reactants only | Add light and chloroplast | light + chloroplast |
| Enzyme overheat as stop | Just stops | Say denatured | denatured |
| Dominant/recessive swapped | Recessive alone | Recessive needs both | dominant alone, recessive paired |
How to use this paper
First drill: the full 45 minutes at the 40-question pace (this mock demonstrates 6 core items).
Mark it: check equations and genetics concepts.
Second drill: redo three to seven days later, aiming for a faster finish.
What should I do after drilling this paper?
Direct answer: log answers with wrong equations or dominant/recessive mix-ups; redo in three to seven days; and drill Paper 4 theory.
FAQ
Is this a Cambridge past paper?
No. The questions and answers are TutorZone originals, not Cambridge past papers or marking references.
What is in IGCSE Biology Paper 2?
Multiple choice (Extended), 40 marks, 45 min, 30%, covering core and supplement content.
What is the photosynthesis equation?
Carbon dioxide + water -> (light, chloroplast) -> glucose + oxygen.
Official references
| Resource | What to check |
|---|---|
| Cambridge IGCSE Biology 0610 page | Confirm the paper marks and times |
| https://www.tutorzone.com.hk/en-igcse-biology-0610-paper-4-mock-2027/ | IGCSE Biology Paper 4 drilling mock |
Related: practice area · IGCSE Biology Paper 4 drilling mock
Next step: find a tutor / register as a tutor
After drilling, the hard part is telling a conceptual error from a writing error. Tell us the year group, the school and your available times, and TutorZone will match you with a tutor who knows the HKEAA assessment requirements.
Demand for tutors in this subject is steady, and those who can explain the marking scheme and where marks are won are especially sought after. Register free; you pay only when a match succeeds.
