BIOLOGY-1BI0 · Pearson Edexcel GCSE (9–1)
BIOLOGY-1BI0/11
(Foundation Tier)
Biology · 2024 · Variant 1
Relative difficulty
Analysis source: Pearson Edexcel
Analysis aligned to the official syllabus and assessment design.
2.0 / 5
200
210 min
Plant Transport and Environmental Physiology
Cohort performance
Session statistics from official examination reports
Total marks
200
Duration
210 min
Session difficulty
2.0 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
A significant portion of the marks was concentrated in Key Concepts in Biology (covering cells, enzymes, and transport mechanisms) and Plant Structures and Functions.
Students scored heavily on labeling bacterial cells, identifying sight defects, and plotting graphs.
Conversely, marks were routinely lost on questions requiring structured explanations.
For instance, explaining why there is no trypsin activity at pH 5 required understanding that the active site changes shape, preventing substrate binding due to denaturation.
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: 4100%IdeAO2:
Weight: 375%Translation AO3:
Weight: 250%Analysis
Weight: 125%
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
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
Match the expected response style for “State” questions.
Give reasons and link mechanism to outcome; each point needs a because/so chain.
State features in sequence or list observable properties — do not explain causes unless asked.
Match the expected response style for “Give” questions.
Show formula, substitution, and unit; method marks need visible working.
Time traps
Sections where candidates spent disproportionate time relative to marks
Min per mark: 1.2
Min per mark: 1.1
Syllabus traceability
Topics linked to questions and mark weighting in this session
Key concepts in biology (Paper 1)
33 marks this session
Plant structures and their functions (Paper 2)
30 marks this session
Cells and control (Paper 1)
27 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
Key concepts in biology (Paper 1)
Animal coordination, control and homeostasis (Paper 2)
Cells and control
Plant structures and their functions (Paper 2)
Cells and control (Paper 1)
Ecosystems and material cycles
Health, disease and the development of medicines (Paper 1)
Natural selection and genetic modification
Paper comparison
Marks and duration breakdown across papers in this session
Paper 1F (1BI0/1F):
Paper 2F (1BI0/2F):
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
Key concepts in biology (Paper 1)
33 marks this session
Practise in RevuiPlant structures and their functions (Paper 2)
30 marks this session
Practise in RevuiCells and control (Paper 1)
27 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
A significant portion of the marks was concentrated in Key Concepts in Biology (covering cells, enzymes, and transport mechanisms) and Plant Structures and Functions.
- 2Message
Students scored heavily on labeling bacterial cells, identifying sight defects, and plotting graphs.
- 3Message
Conversely, marks were routinely lost on questions requiring structured explanations.
- 4Message
For instance, explaining why there is no trypsin activity at pH 5 required understanding that the active site changes shape, preventing substrate binding due to denaturation.
Teacher briefing pack
One-page session summary for tutors and classroom review
2024 2024
Biology
A significant portion of the marks was concentrated in Key Concepts in Biology (covering cells, enzymes, and transport mechanisms) and Plant Structures and Functions. Students scored heavily on labeling bacterial cells, identifying sight defects, and plotting graphs. Conversely,
A significant portion of the marks was concentrated in Key Concepts in Biology (covering cells, enzymes, and transport mechanisms) and Plant Structures and Functions.
Students scored heavily on labeling bacterial cells, identifying sight defects, and plotting graphs.
Conversely, marks were routinely lost on questions requiring structured explanations.
- Total marks
- 200
- Duration
- 210 min
- Session difficulty
- 2.0 / 5
Session analysis
A significant portion of the marks was concentrated in Key Concepts in Biology (covering cells, enzymes, and transport mechanisms) and Plant Structures and Functions. Students scored heavily on labeling bacterial cells, identifying sight defects, and plotting graphs. Conversely, marks were routinely lost on questions requiring structured explanations. For instance, explaining why there is no trypsin activity at pH 5 required understanding that the active site changes shape, preventing substrate binding due to denaturation. Many students omitted the vital term 'active site' or mistakenly stated that the enzyme was 'killed'.
Updated Jun 14, 2026
Paper breakdown
Paper 1F (1BI0/1F):
Paper 2F (1BI0/2F):
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.
85% 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 Description / Explanation
84·34·42%
Multiple Choice / Match / Short Recall
52·48·26%
Mathematical Calculations / Data Handling
40·14·20%
Extended Open Response
(QWC 6-Mark)
24·4·12%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Difficulty trend
Compare difficulty across recent years.
Time vs marks
Compare marks with suggested time allocation to plan exam pacing.
Paper 1F Questions
0.88 m/minPaper 2F Questions
0.83 m/minTotal marks
70
Total time
82 min
Avg pace
0.85
Cumulative marks ladder
The line is your running mark total question by question; dashed lines are the estimated grade cut-offs. See which question the line crosses your target grade at, so you know how far you must answer cleanly and which questions decide a band.
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
Monoclonal Antibodies
85%85%
Sex Determination and Genetics of Inheritance
80%80%
The Carbon Cycle and Nitrogen Cycle
75%75%
Examiner notes & key calculations
- The 'Killed' Enzyme Misconception: High temperatures (60°C) and extreme pH levels denature enzymes; they do not 'kill' them. Mark schemes explicitly reject 'killed' for enzymes.
- Confusing Eye Muscles: When explaining how light entering the eye is controlled, many students confused the iris muscles with ciliary muscles (which control lens shape for accommodation).
- Animal Cell Structure Errors: In Paper 2, Question 6, a common error was stating that alveoli have 'thin cell walls' instead of 'thin cells' or 'one-cell-thick walls'. Animal cells never have cell walls.
- Incomplete Practical Steps: In the food tests extended response, candidates frequently forgot to mention that Benedict's solution requires heating/boiling to yield a color change, whereas Biuret does not.
Exam tips
Paper format
- Duration
- 1h 45min
- Total marks
- 100
- Weighting
- 50%
- Question types
- Recall and Short Response (1-2 marks), Structured Explanations (3-4 marks), Extended Quality of Written Communication (6 marks)
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.