Cambridge IGCSE Biology (0610) - IGCSE Biology - Osmosis (3.2)

🎓 IGCSE Biology - The Complete Course: https://www.tes.com/teaching-resource/resource-12989155 IGCSE Chemistry - The Complete Course: 🎓 Complete Teaching Resource (including past exam questions and mark schemes organised by chapter): https://www.tes.com/teaching-resource/resource-13280954 🎓 Student resource (PDF only): https://www.tes.com/teaching-resource/resource-13245244 🎓 All the videos (the complete library on Patreon): https://www.patreon.com/igbiocomplete ☕️ Buy me a coffee - https://www.buymeacoffee.com/ArthurJohnParker Cambridge IGCSE Biology (0610/0970) Chapter 3 - Movement into and out of cells Topic 3.2 - Osmosis For exams from 2025 (core and extended) As always this video follows the Cambridge syllabus exactly and contains absolutely everything you need to know for your final exam! My other channels: @igpecomplete - Cambridge IGCSE PE @ocrpecomplete - OCR GCSE PE Timestamps: 0:00 Contents 0:43 Roles of water 1:29 Osmosis 2:32 Osmosis in plant cells 3:09 Osmosis experiments 4:34 Water potential (extended) 5:23 Key terms (extended) 6:07 Osmosis and cells (extended) Core content: - Describe the role of water as a solvent in organisms with reference to digestion, excretion and transport. - State that water diffuses through partially permeable membranes by osmosis. - State that water moves into and out of cells by osmosis through the cell membrane. - Investigate osmosis using materials such as dialysis tubing. - Investigate and describe the effects on plant tissues of immersing them in solutions of different concentrations. - State that plants are supported by the pressure of water inside the cells pressing outwards on the cell wall. Extended content: - Describe osmosis as the net movement of water molecules from a region of higher water potential (dilute solution) to a region of lower water potential (concentrated solution), through a partially permeable membrane. - Understand the terms turgid, turgor pressure, plasmolysis, flaccid. - Explain the importance of water potential and osmosis in the uptake and loss of water by organisms.