IGCSE Biology Grade 9 Chapter 3 | Movement of Substances (Diffusion, Osmosis, Active Transport)

Welcome to this quick and clear overview of IGCSE Biology Chapter 3 – Movement of Substances into and out of Cells. In this video, we cover: Diffusion: How substances move from high to low concentration, with real-life examples like lungs and dialysis machines. Osmosis: Understanding water movement across membranes and its effect on plant and animal cells. Active Transport: How cells move substances against the concentration gradient using energy. We also explore: ✔️ Factors affecting diffusion ✔️ Simple experiments using agar jelly, potato strips & dialysis tubing ✔️ Real-life applications of each transport method ✔️ Tips to tackle exam-style questions Whether you're revising for your IGCSE exams or just need a clear explanation of key concepts, this video breaks it down for you! 🔔 Don’t forget to subscribe for more science summaries and study tips!