https://www.khanacademy.org/science/grade-8-science-cambridge-curriculum/xce32f00f19912b26:biotechnology/xce32f00f19912b26:biotechnology-and-medicine/v/human-insulin-biotechnology-its-applications-biology-khan-academy-1080p 2026-04-20T05:10:45.627247989Z Human insulin-Biotechnology & its Applications Human insulin Biotechnology and its Applications Khan Academy Pakistan video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Human insulin-Biotechnology & its Applications Human insulin Biotechnology and its Applications https://cdn.kastatic.org/ka-youtube-converted/nbWE_OuP0G8.mp4/nbWE_OuP0G8.mp4 673 Biotechnology and medicine https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:biotechnology-and-genetic-modification/x2a084a90105205d2:genetic-modification/e/genetically-engineered-insulin 2025-01-16T04:45:06.409984422Z Genetically engineered insulin Peptide chains A, B, and C, disulphide bond linkage, issues with animal sourced insulin, and oral ingestion. mahathi exercise https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:disease-and-immunity/x2a084a90105205d2:antibiotics/v/antibiotics-useful-and-harmful-microbes-grade-9-science-khan-academy-1080p 2026-04-20T05:10:45.627247989Z Antibiotics-Useful and Harmful Microbes Antibiotics useful and harmful microbes Khan Academy Pakistan video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Antibiotics-Useful and Harmful Microbes Antibiotics useful and harmful microbes https://cdn.kastatic.org/ka-youtube-converted/XLeIMjwfZhQ.mp4/XLeIMjwfZhQ.mp4 401 Biotechnology and medicine https://www.khanacademy.org/science/health-and-medicine/infectious-diseases/x6e556f83:bacteria-and-viruses/a/antibiotics 2025-06-30T13:27:22.980068417Z Antibiotics What are antibiotics and where do they come from? article https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:disease-and-immunity/x2a084a90105205d2:antibiotics/a/antibiotics-an-overview 2021-04-29T07:58:37Z Antibiotics: An overview article https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:useful-and-harmful-microorganisms/x345505a97fc4a662:antibiotics/e/useful-microbes 2025-11-25T10:10:42.36317656Z Useful microbes Learn how microbes help in making curd, bread, and fertile soil. This exercise from Chapter 8 “Useful and Harmful Microbes” covers Lactobacillus, Yeast, and Rhizobium with image-based and applied questions. Students explore fermentation, nitrogen fixation, and real-life examples of symbiotic relationships that benefit food and farming. Yajurva Joshi exercise https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:disease-and-immunity/x2a084a90105205d2:antibiotics/e/antibiotics 2026-04-15T10:20:35.936477099Z Antibiotics This exercise dives deep into the fascinating world of antibiotics—not just what they are, but how they work, when they should (and shouldn't!) be used, and the science stories behind their discovery. Bitasta Datta exercise https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:disease-and-immunity/x2a084a90105205d2:active-immunity-and-vaccination/v/vaccination-the-world-of-microorganisms-grade-8-science-khan-academy-1080p 2026-04-20T05:10:45.627247989Z Vaccination-The World of Microorganisms Vaccination The World of Microorganisms Khan Academy Pakistan video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Vaccination-The World of Microorganisms Vaccination The World of Microorganisms https://cdn.kastatic.org/ka-youtube-converted/QLwFOHQ1J4k.mp4/QLwFOHQ1J4k.mp4 581 Biotechnology and medicine https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:disease-and-immunity/x2a084a90105205d2:active-immunity-and-vaccination/e/lo-5-3-vaccination 2026-03-24T23:41:07.080866137Z Vaccination, Uses of micro-organisms and Vaccination chart Let's solve some problems to better understand the concept of vaccination and its uses. Aakash Bagga exercise