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🎓 IGCSE Biology - The Complete Course - https://www.tes.com/teaching-resource/resource-12989155 Cambridge 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 21 - Biotechnology and genetic modification Topic 21.2 - Biotechnology For exams in 2023, 2024 & 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 0:41 Biotechnology 0:57 Biofuels and bread-making 1:31 Fruit juice production 1:51 Biological washing powders 3:04 Lactose-free milk (extended) 3:40 Fermenters (extended) 4:13 Controlling the conditions in fermenters (extended) Core content: - Describe the role of anaerobic respiration in yeast during the production of ethanol for biofuels. - Describe the role of anaerobic respiration in yeast during bread-making. - Describe the use of pectinase in fruit juice production. - Investigate and describe the use of biological washing powders that contain enzymes. Extended content: - Explain the use of lactase to produce lactose-free milk. - Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including insulin, penicillin and mycoprotein. - Describe and explain the conditions that need to be controlled in a fermenter, including: temperature, pH, oxygen, nutrient supply and waste products.
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