Singapore Biology Olympiad Past Papers ^new^ Jun 2026

You cannot just read a textbook to win the SBO. You need to practice.

You did not know the facts or theoretical concepts.

For the aspiring biologist in Singapore, few accolades are as prestigious as a medal in the Singapore Biology Olympiad (SBO). Organized by the NUS High School of Mathematics and Science in conjunction with the Ministry of Education, the SBO serves as the primary gateway for selecting the national team to compete at the International Biology Olympiad (IBO).

: A 3-hour online theory test consisting of 100 multiple-choice questions. Round 2 : A practical round for top-performing students. 3. Recommended Study Resources The Singapore Biology Olympiad

After analyzing past papers from 2010–2023, we have identified three recurring traps: singapore biology olympiad past papers

Students who excel in Round 1 are invited to the Practical Test, usually hosted at NUS laboratories. Hands-on laboratory tasks and experiments.

Often overlooked, but these form a significant chunk of the marks. Conclusion

SBO papers often use complex, multi-part questions that require integrating multiple topics (e.g., combining biochemistry with cell biology and genetics).

Specialized coaching services offer SBO-specific training and analysis of past papers. For example, Cerebrum Biology Academy offers tailored SBO coaching that includes SBO past paper analysis. 3. Student Forums You cannot just read a textbook to win the SBO

If you are a lower secondary student, note that SJBO also does not release papers, but organizers explicitly recommend using IBO past papers as the primary reference. 🔬 Exam Format & Strategy Round 1: Theory Test Structure: Roughly 100 Multiple Choice Questions (MCQs). Duration: 3 hours.

This is the single most important step. Maintain a dedicated notebook or digital document for questions you get wrong. For every mistake, write down: The core concept being tested.

Since SBO and SJBO papers are often not publicly available, you should practice using high-fidelity substitutes that mirror the exam's structure and difficulty:

Create error logs organized by topic (e.g., “Ecology: niche theory weak”). Past papers reveal that certain topics—like oxidative phosphorylation, CRISPR mechanics, and plant water transport—reappear frequently. For the aspiring biologist in Singapore, few accolades

SBO papers generally align with the International Biology Olympiad (IBO) syllabus, which expands far beyond standard A-Level or IB biology curricula. Past papers consistently test seven core domains:

Because SBO papers are strictly invigilated and not officially released to the public, students often rely on high-level international resources to prepare for the "deep" analytical questions: Official IBO Archive International Biology Olympiad Theory Papers

Do not attempt past papers blindly. Before diving into the questions, read through Campbell Biology (the undisputed bible of the Olympiad). Ensure you have a firm grasp of A-Level or AP-level biology concepts, particularly in biochemistry, genetics, and physiology. Step 2: The Untimed Diagnostics