BIOLOGY · HKDSE
BIOLOGY/11
(Compulsory Part - Section A MC + Section B Conventional)
Biology · 2023 · Variant 1
Relative difficulty
Analysis source: Hong Kong Examinations and Assessment Authority (HKEAA)
Analysis aligned to the official syllabus and assessment design.
3.8 / 5
160
210 min
Essential life processes in plants (Photosynthesis, Auxins and Plant transport)
Cohort performance
Session statistics from official examination reports
Total marks
160
Duration
210 min
Session difficulty
3.8 / 5
Level 5**
~79% of max
Level 5*
~76% of max
Level 5
~63% of max
Key examiner messages
Top priorities from the principal examiner before you revise
The 2023 Biology Paper 1 and Paper 2 continue the trend of emphasizing scientific inquiry, experimental deduction, and logical reasoning. Rather than relying on simple rote memorization, questions are highly context-driven. The overall difficulty is graded at 3.8 out of 5 (Medium
Marks are heavily concentrated in the application of biological principles to novel scenarios.
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.
Knowledge Retrieval
Weight: 7100%Scientific
Weight: 571%Inquir
Weight: 457%Analysis & G
Weight: 343%Structured Communication
Weight: 229%
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
Reporting source
HKEAA Subject Examination Report — comments on candidates’ performance with marking schemes
Level 5**
Outstanding — competitive JUPAS programmes (medicine, law, top faculties)
Level 5*
Excellent — strong JUPAS profile for selective programmes
Level 5
Good — meets most university entrance requirements
Level 4
Satisfactory — foundation programmes or less selective routes
Level 3
Pass threshold for many sub-degree and vocational pathways
Admission context
Levels feed JUPAS and non-JUPAS university applications; 5** and 5* are most selective
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
Give reasons and link mechanism to outcome; each point needs a because/so chain.
Apply knowledge to an unfamiliar context; concise, practical points score best.
State features in sequence or list observable properties — do not explain causes unless asked.
Match the expected response style for “State” questions.
Show formula, substitution, and unit; method marks need visible working.
Identify similarities and differences explicitly — paired sentences or a table helps.
Time traps
Sections where candidates spent disproportionate time relative to marks
Min per mark: 1.5
Min per mark: 1.5
Min per mark: 1.4
Min per mark: 1
Syllabus traceability
Topics linked to questions and mark weighting in this session
Essential life processes in plants
19 marks this session
Ecosystems
17 marks this session
Basic genetics
14 marks this session
Essential life processes in animals
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
Essential life processes in animals
Essential life processes in plants
Biodiversity and evolution
Human impact on the environment
Ecosystems
Cellular energetics
Basic genetics
Molecular genetics
Paper comparison
Marks and duration breakdown across papers in this session
Paper 1 (Section A - MCQs & Section B - Conventional):
Paper 2 (Electives - Choose 2 out of 4):
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
Essential life processes in plants
19 marks this session
Practise in RevuiEcosystems
17 marks this session
Practise in RevuiBasic genetics
14 marks this session
Practise in RevuiEssential life processes in animals
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 2023 Biology Paper 1 and Paper 2 continue the trend of emphasizing scientific inquiry, experimental deduction, and logical reasoning. Rather than relying on simple rote memorization, questions are highly context-driven. The overall difficulty is graded at 3.8 out of 5 (Medium
- 2Message
Marks are heavily concentrated in the application of biological principles to novel scenarios.
Teacher briefing pack
One-page session summary for tutors and classroom review
2023 2023
Biology
Marks are heavily concentrated in the application of biological principles to novel scenarios. Key areas include:
The 2023 Biology Paper 1 and Paper 2 continue the trend of emphasizing scientific inquiry, experimental deduction, and logical reasoning. Rather than relying on simple rote memorization, questions are highly context-driven. The overall difficulty is graded at 3.8 out of 5 (Medium
Marks are heavily concentrated in the application of biological principles to novel scenarios.
- Total marks
- 160
- Duration
- 210 min
- Session difficulty
- 3.8 / 5
- Level 5**
- ~79% of max
- Level 5*
- ~76% of max
- Level 5
- ~63% of max
Session analysis
Marks are heavily concentrated in the application of biological principles to novel scenarios. Key areas include:
Updated Jun 11, 2026
Paper breakdown
Paper 1 (Section A - MCQs & Section B - Conventional):
Paper 2 (Electives - Choose 2 out of 4):
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.
81% 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.
Paper 1B)
73·10·46%
Paper 2)
40·2·25%
Paper 1A)
36·36·23%
Paper 1B Q11)
11·1·7%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Difficulty trend
Compare difficulty across recent years.
Time vs marks
Compare marks with suggested time allocation to plan exam pacing.
Paper 1 Section A (
0.97 m/minPaper 1 Section B (
0.73 m/minPaper 2 Section 1 (
0.67 m/minPaper 2 Section 2 (
0.67 m/minTotal marks
159
Total time
211 min
Avg pace
0.75
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
Osmoregulation and Kidney Nephron Structure
88%88%
Nervous Coordination and Synaptic Transmission
85%85%
Recombinant DNA and Gene Cloning
78%78%
Where the Marks Are
Marks are heavily concentrated in the application of biological principles to novel scenarios. Key areas include:
Exam tips
Paper format
- Duration
- 2h 30min
- Total marks
- 120
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.