IB DP Biology Condensed Topic Notes Bundle: Section D Continuity and Change 2026

IB DP Biology: Quick Study Bundle Section D Continuity and Change – Condensed Revision Outline

A helpful, exam-ready resource for teachers and students.

This abridged and structured revision guide bundle is designed to help IB DP Biology students revising Section D: Continuity and Change by condensing key syllabus content into a clear, accessible format. It provides full coverage of required concepts while simplifying complex processes, making it an effective tool for both classroom teaching and independent study.

Why This Resource?

• Covers Every Assessment Statement – Aligned with the IB Biology syllabus to ensure all required content from Section D is included.
• Structured for Easy Review – Information is organised into clear, manageable sections to support rapid comprehension and efficient exam revision.
• Interactive and Engaging – Digital checkboxes allow students to track progress as they complete each revision section.
• Time-Saving for Teachers – Ready to use as a teaching aid, revision sheet, or exam preparation guide with minimal preparation needed.

What Is Inside?

DNA Replication – Enzymes, replication forks, leading and lagging strands, and fidelity mechanisms.

Protein Synthesis – Transcription, RNA processing, translation, and gene regulation.

Mutation and Gene Editing – Types of mutation, causes, CRISPR basics, and repair.

Cell and Nuclear Division – Mitosis, meiosis, checkpoints, genetic variation, and regulation.

Gene Expression – Control of transcription and translation, epigenetics, and development.

Water Potential – Solute and pressure potentials, Ψ equation, osmosis, and plant examples.

Reproduction – Asexual and sexual reproduction, gametogenesis, and embryonic development.

Inheritance – Mendelian and non-Mendelian patterns, Punnett squares, and pedigree analysis.

Homeostasis – Feedback systems, thermoregulation, osmoregulation, and control mechanisms.

Natural Selection – Variation, selection pressures, adaptation, and evidence.

Stability and Change – Systems stability, disturbances, and ecosystem responses.

Climate Change – Greenhouse effect, evidence, impacts, and mitigation strategies.

List of essential keywords and definitions for Section D topics.

This resource is:

• Concise and Effective – Reduces information overload while reinforcing essential ideas.
• Exam-Focused – Covers core IB DP Biology content in an assessment-ready format.
• Versatile Use – Suitable for daily lessons, revision sessions, flipped classrooms, and exam preparation.

Use this revision bundle to strengthen your teaching resources and provide students with a focused, structured approach to mastering the Continuity and Change section of the IB DP Biology course.