QCE Biology Past Papers 2026
Where to find official QCE Biology past external assessment papers, what each unit tests, and how to turn a marked paper into a targeted revision plan.
QCAA publishes official past QCE Biology external assessment (EA) papers, released under the QCAA’s CC BY 4.0 licence (© State of Queensland (QCAA)), free and public via the link above. Since the QCE external assessment regime only began in 2020, there’s a shorter run of past papers than older curricula — but each one comes with a marking guide showing exactly how marks were awarded. This page explains what each unit covers, then links you into Revizi’s syllabus-mapped practice for the units a past paper shows you’re weak on.
Official QCAA Biology syllabus & past papers →
Past Paper: The QCE Biology external assessment contributes 50% of your final subject result, examined via written response questions covering Units 3 and 4. QCAA’s marking guides show exactly how marks are awarded for each question — review these alongside your own attempt, not just a model answer, to see where marks are actually lost.
Topics Covered
Unit 3 Topic 1: Describing Biodiversity
- Classification and taxonomy
- Biodiversity indices and measurement
- Distribution of species
- Impact of humans on biodiversity
Unit 3 Topic 2: Ecosystem Dynamics
- Energy flow in ecosystems
- Biogeochemical cycles
- Population dynamics
- Ecological relationships and interactions
Unit 4 Topic 1: DNA, Genes and the Continuity of Life
- DNA structure and replication
- Gene expression and regulation
- Mutations and their effects
- Genetic technologies
Unit 4 Topic 2: Continuity of life on Earth
- Natural selection and evolution
- Speciation and evidence for evolution
- Human evolution
- Genetic variation in populations
Question Types
Multiple-Choice Questions
Practice MCQs covering Unit 3 and 4 content from the QCAA syllabus.
Short Response Questions
Build technique with 2–5 mark responses requiring precise, evidence-based answers.
Extended Response
Practice 8–15 mark essays requiring structured arguments and analysis.
Stimulus-Based Questions
Analyse data, case studies and source material in context.
How Revizi Helps
QCAA Syllabus Alignment
Questions are organised around QCAA syllabus content from Units 3 & 4.
Spaced Repetition
Weak areas are automatically scheduled for review to build long-term retention.
Performance Tracking
Monitor your accuracy across units and topics to prioritise remaining study time.
Related Practice Pages
Frequently Asked Questions
Where can I find official QCE Biology past papers?
QCAA publishes official past QCE Biology external assessment papers, released under its CC BY 4.0 licence, free and public on its website — see the official link above.
Does Revizi host official QCAA past papers?
Revizi doesn’t reproduce QCAA’s past papers here — get those directly from QCAA using the link above. Revizi provides original, syllabus-mapped practice questions for each Biology unit — use both resources together: QCAA papers for realistic full-EA practice, Revizi for targeted topic revision.
How many years of Biology past papers are there?
QCE’s external assessment only began in 2020, so there’s a shorter run of past papers than older curricula — usually 4–5 years available. Do them under timed conditions, mark against QCAA’s guide, then use Revizi to revise whichever unit cost you the most marks.
What is the format of the QCE Biology external assessment?
A written examination covering Units 3 and 4, contributing 50% of your final subject result, marked against QCAA’s published assessment objectives.
Last updated: March 2026