CAIE · AS & A Level
Biology
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Worked model answers
Full-marks answers to real Biology past-paper questions, each with a mark-by-mark examiner breakdown.
- A-Level Biology May/June 2025 Q3(c)(ii): The normal allele for the gene An-1 codes for a transcription factor that has a role in… solved ✓
- A-Level Biology October/November 2024 Q10(c): Glycogen synthase catalyses the conversion of glucose to glycogen in liver cells. The p… solved ✓
- A-Level Biology October/November 2024 Q3(c)(ii): Another method being investigated to treat LCA10 is to use a gene editing tool known as… solved ✓
- A-Level Biology October/November 2024 Q2(d)(ii): One consequence of the pneumonia that results from P. jirovecii infection is a decrease… solved ✓
- A-Level Biology May/June 2024 Q6(a): Describe three ways in which the structure of messenger RNA (mRNA) differs from the str… solved ✓
- A-Level Biology May/June 2024 Q3(b): Compare lysozyme and penicillin to show the similarities and differences between these… solved ✓
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Biology chapters
44 topics · free- 1.1The microscope in cell studies
- 1.2Cells as the basic units of living organisms
- 2.1Testing for biological molecules
- 2.2Carbohydrates and lipids
- 2.3Proteins
- 2.4Water
- 3.1Mode of action of enzymes
- 3.2Factors that affect enzyme action
- 4.1Fluid mosaic membranes
- 4.2Movement into and out of cells
- 5.1Replication and division of nuclei and cells
- 5.2Chromosome behaviour in mitosis
- 6.1Structure of nucleic acids and replication of DNA
- 6.2Protein synthesis
- 7.1Structure of transport tissues
- 7.2Transport mechanisms
- 8.1The circulatory system
- 8.2Transport of oxygen and carbon dioxide
- 8.3The heart
- 9.1The gas exchange system
- 10.1Infectious diseases
- 10.2Antibiotics
- 11.1The immune system
- 11.2Antibodies and vaccination
- 12.1Energy
- 12.2Respiration
- 13.1Photosynthesis as an energy transfer process
- 13.2Investigation of limiting factors
- 14.1Homeostasis in mammals
- 14.2Homeostasis in plants
- 15.1Control and coordination in mammals
- 15.2Control and coordination in plants
- 16.1Passage of information from parents to offspring
- 16.2The roles of genes in determining the phenotype
- 16.3Gene control
- 17.1Variation
- 17.2Natural and artificial selection
- 17.3Evolution
- 18.1Classification
- 18.2Biodiversity
- 18.3Conservation
- 19.1Principles of genetic technology
- 19.2Genetic technology applied to medicine
- 19.3Genetically modified organisms in agriculture
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MarkScheme marks Cambridge Biology syllabus 9700 (A-Level) from photos of your handwriting, using real mark-scheme wording — not a generic AI grade.
9700 revision guide →Your Biology progress →Cambridge Biology (9700) past paper marking
Upload A-Level Biology (9700) answers. Keyword-accurate marking from real Cambridge schemes — MCQ, structured & practical skills papers. Free to try. MarkScheme applies real Cambridge mark schemes to your handwriting — B1/M1/A1 point marking for A-Level Biology. Upload a photo from any 9700 past paper and get feedback in seconds, or browse our paper library below.
Frequently asked questions
- When are Cambridge 9700 results 2026?
- AS & A Level grades for the June 2026 series release 11 August 2026 (05:00 GMT). Component grade threshold tables typically follow around 13 August. IGCSE/O Level grades release 18 August. Subject checklist: /results-2026/caie/9700.
- How do I check if my 9700 grade will hold?
- Paste your Biology (9700) raw mark and recent or official thresholds into Will my grade hold? — you will see the predicted grade and marks to the next boundary. Always confirm against your official statement.
- Can MarkScheme mark Biology (9700) handwriting?
- Yes — upload photos of your A-Level Biology answers. We score against Cambridge mark schemes for syllabus 9700, including method marks and essay bands where applicable.
- Do I need the official 9700 mark scheme PDF?
- MarkScheme uses mark-scheme logic for 9700. For your own study, always download the official paper and mark scheme for the same exam series from Cambridge or your school.
- Is this a replacement for my teacher?
- No — it is a faster second pass when you revise alone. Use strict self-marking first, then MarkScheme to catch what you missed.