DP IB SL Biology Revision Notes
Perfect for 2026 Exams onwards in line with the First Assessment 2025 Syllabus
Gain confidence and achieve strong results in your DP IB Biology SL exams with our expertly compiled collection of revision notes. Access clear, concise, and syllabus-aligned explanations covering all key topics, including diagrams, examples, and essential definitions that demonstrate how concepts are applied in exams. Ideal for reinforcing core understanding, mastering IB command terms, and strengthening analytical, calculation, and diagram interpretation skills to secure top grades. These revision notes also support IB Biology HL students who want to review and consolidate fundamental concepts, and you can further enhance your preparation by exploring our IB Biology SL past papers and examiner-style topic questions.
Find all IB SL Biology revision notes by topic, aligned with the syllabus for efficient exam preparation.
Key Concept Videos
Cell Biology
Cell Cycle - Mutagens & Cancer
Cell Specialization
Membrane Structure
Mitosis, Cytokinesis & The Cell Cycle
Molecular Biology
Carbohydrates and Lipids
DNA Replication
Enzymes
Protein Synthesis
Structure and Function of Proteins
Water
Genetics
Codons, Degeneracy, and Sickle Cell
Inheritance
Ecology
Carbon Cycle
Energy in Ecosystems
Evolution & Biodiversity
Evolution and Speciation
Human Physiology
Homeostasis, Hormones, and the Menstrual Cycle
Neural Signaling - Impulse
Neural Signaling - Synapse
The Cardiovascular System
The Respiratory System
Metabolism, Cell Respiration & Photosynthesis
The Electron Transport Chain and Chemiosmosis
Animal Physiology
The Musculoskeletal System I
The Musculoskeletal System II
Revision Notes
How DP IB Biology SL Revision Notes Help Students Pass Their Exams
1. Clear and Concise Explanations
Our DP IB Biology SL Revision Notes break down complex concepts into simple, easy-to-understand explanations. Students can grasp key topics quickly, ensuring they focus on what really matters for the exams.
2. Syllabus-Aligned Content
These notes cover all core topics in line with the 2025 First Assessment Syllabus. With diagrams, examples, and key definitions, students can confidently revise every area required for exam success.
3. Master IB Command Terms
Understanding IB command terms is essential for scoring well. Our revision notes emphasize these terms, showing students how to apply them in data-based, short-answer, and extended-response questions.
4. Improve Analytical and Problem-Solving Skills
Students strengthen their scientific analysis, calculations, and diagram interpretation skills, making it easier to tackle challenging exam questions.
5. Complement with Practice Papers
When combined with Exam Papers Practice past papers, these revision notes allow students to test their knowledge, identify weak areas, and maximize their exam performance.
Struggling with DP IB Biology SL? Boost Your Exam Performance Today!
Master DP IB Biology SL with Revision Notes & Topic-Based Questions
Struggling to fully understand IB Biology SL concepts for the 2026 exams? You’re not alone. Our DP IB SL Biology Revision Notes & Topic Questions are designed to simplify complex biological ideas, reinforce understanding, and improve your exam performance. With structured notes and examiner-style questions, you can confidently revise every part of the syllabus.
Why Use DP IB SL Biology Revision Notes & Topic-Based Questions?
Revision notes aren’t just summaries — they help consolidate understanding and apply concepts in real exam scenarios. Covering all syllabus topics like Cell Biology, Genetics, Ecology, and Human Physiology, they let you practice with topic-based questions and build exam confidence through clear explanations and structured guidance.
Detailed Solutions and Step-by-Step Guidance
Our topic questions include fully worked solutions that show exactly how marks are awarded and how examiners expect answers. This helps you:
Understand the logic behind every solution
Avoid common mistakes and misconceptions
Improve exam technique to maximize your marks
Fully Aligned with the 2026 IB Biology SL Syllabus
Every revision note and topic question strictly follows the official IB Biology SL syllabus. From theoretical concepts to practical applications, you can revise confidently knowing you’re studying exactly what will appear in your exams.
Revise Smarter, Not Harder
Success in IB Biology SL isn’t about memorization — it’s about strategic, focused revision. Using our notes and topic-based questions, you can:
Quickly review essential concepts
Apply knowledge across different question types
Track your progress to identify areas that need improvement
Where to Find the Best Educational Support
For additional help, explore our sister organizations — Lite Regal International College and Lite Regal Education — which offer expert tutors, revision programs, and study support for IB students. Whether you prefer one-on-one tutoring or structured group sessions, you’ll find tailored options to match your learning needs.
Success in DP IB Biology SL comes from clear, consistent revision—not last-minute studying. With organised, syllabus-aligned revision notes, you can review concepts quickly, strengthen core understanding, and build the confidence needed to perform well in your Biology SL exams.
