9610 · Oxford AQA International AS Level
9610/11
Paper 1
Biology · Winter 2025 · Variant 1
Relative difficulty
Analysis source: Oxford AQA
Analysis aligned to the official syllabus and assessment design.
3.8 / 5
225
270 min
Respiration and Energy Transfer
Cohort performance
Session statistics from official examination reports
Total marks
225
Duration
270 min
Session difficulty
3.8 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
The January 2025 assessment series presents a robust academic challenge, earning a solid 4-star difficulty rating.
Across Units 1, 2, and 3, students encountered a high density of application-based data evaluation questions and rigorous practical calculations, testing skills beyond mere rote memorisation.
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
Skill weighting
Shows the skill mix this paper tested most heavily.
Recall & Understanding
Weight: 6100%Biological Experimental
Weight: 583%Mathematical
Weight: 350%Critical Evaluation
Weight: 233%Analysis
Weight: 117%
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
No data available in official reports
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
Report type
Examiner report — national grade boundaries and question-level commentary
Level A
Approx. 80% of maximum mark
Level B
Approx. 70% of maximum mark
Level C
Approx. 60% of maximum mark
Level D
Approx. 50% of maximum mark
Level E
Approx. 40% of maximum mark
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
State features in sequence or list observable properties — do not explain causes unless asked.
Give reasons and link mechanism to outcome; each point needs a because/so chain.
Show formula, substitution, and unit; method marks need visible working.
Apply knowledge to an unfamiliar context; concise, practical points score best.
Weigh arguments for and against with evidence; end with a supported judgement.
Match the expected response style for “Name” questions.
Time traps
Sections where candidates spent disproportionate time relative to marks
No data available in official reports
Syllabus traceability
Topics linked to questions and mark weighting in this session
Respiration
20 marks this session
Biochemical reactions in cells are controlled by enzymes
13 marks this session
DNA, genes and chromosomes
13 marks this session
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Respiration
The effect of biotic and abiotic factors on populations
Photosynthesis
Biological molecules
Transport into and out of cells
Cells and cell structure
Mass transport systems in plants
The defensive functions of mammalian blood
Paper comparison
Marks and duration breakdown across papers in this session
Unit 1: The Diversity of Living Organisms: Unit 2: Biological Systems and Disease: Unit 3: Populations and Genes:
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
Respiration
20 marks this session
Practise in RevuiBiochemical reactions in cells are controlled by enzymes
13 marks this session
Practise in RevuiDNA, genes and chromosomes
13 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
The January 2025 assessment series presents a robust academic challenge, earning a solid 4-star difficulty rating.
- 2Message
Across Units 1, 2, and 3, students encountered a high density of application-based data evaluation questions and rigorous practical calculations, testing skills beyond mere rote memorisation.
Teacher briefing pack
One-page session summary for tutors and classroom review
Winter 2025 2025
Biology
The January 2025 assessment series presents a robust academic challenge, earning a solid 4-star difficulty rating. Across Units 1, 2, and 3, students encountered a high density of application-based data evaluation questions and rigorous practical calculations, testing skills beyo
The January 2025 assessment series presents a robust academic challenge, earning a solid 4-star difficulty rating.
Across Units 1, 2, and 3, students encountered a high density of application-based data evaluation questions and rigorous practical calculations, testing skills beyond mere rote memorisation.
- Total marks
- 225
- Duration
- 270 min
- Session difficulty
- 3.8 / 5
Session analysis
The January 2025 assessment series presents a robust academic challenge, earning a solid 4-star difficulty rating. Across Units 1, 2, and 3, students encountered a high density of application-based data evaluation questions and rigorous practical calculations, testing skills beyond mere rote memorisation.
Updated Jun 12, 2026
Paper breakdown
Unit 1: The Diversity of Living Organisms: Unit 2: Biological Systems and Disease: Unit 3: Populations and Genes:
Top chapters
Exam structure insights
Marks by chapter
See where the marks were concentrated so revision time goes to the highest-value topics.
Mark accessibility
Estimate which marks were basic, mid-level, or high-difficulty.
78% within easy or medium reach
Command word frequency
Spot common command words so answers match the expected response style.
Question type mix
Compare the mark share of each paper section and question type.
Structured / Explain
102·28·45%
Short Answer
55·15·24%
Data Evaluation / Analysis
40·11·18%
Mathematical / Calculation
28·8·12%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Difficulty trend
Compare difficulty across recent years.
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
Inheritance and Hardy-Weinberg Equilibrium
90%90%
Plant Control Systems (Auxins and Gibberellins)
85%85%
Receptors and Nervous Coordination
80%80%
Difficulty Verdict
The January 2025 assessment series presents a robust academic challenge, earning a solid 4-star difficulty rating. Across Units 1, 2, and 3, students encountered a high density of application-based data evaluation questions and rigorous practical calculations, testing skills beyond mere rote memorisation.
Examiner notes & key calculations
- Unit Conversions: In calculating the volume of capillary tubes V=πr2h V = \pi r^2 h V=πr2h, many candidates failed to divide the given 1 mm diameter by 2 to obtain the 0.5 mm radius.
- SD Overlaps: When evaluating statements (such as the parrot delay times in Unit 1, Q6), candidates must explicitly state whether standard deviation bars overlap or do not overlap to secure critical significance marks.
- Biochemical Detail: For the role of DNA polymerase, candidates must avoid stating that it joins complementary base pairs; it catalyzes the formation of phosphodiester bonds on the sugar-phosphate backbone.
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.