Learn about the microbiome, the amazing flexibility of bacteria, and why we have an antibiotic resistance crisis with Professor Lindsay Turnbull from the University of Oxford
Bacteria - Chapter 5
Have you ever wondered what bacteria do for you? Bacteria are the ultimate survivors and brilliant at adapting to a changing environment. By turning genes on and off - known as gene expression - they can change the tools and machinery that they produce, so they can deal with different foodstuffs.
Bacteria also carry extra bits of DNA, called plasmids, that carry genes that allow bacteria to cope with unusual situations. Genes for antibiotic resistance are often carried on plasmids and this means they can easily be passed around, leading to the current crisis.
Timestamps:
00:00 Intro
00:24 Titles
00:29 The Microbiome
01:51 E.coli and gene expression
03:34 Gene expression in detail (the lac operon)
04:53 Plasmids and the antibiotic resistance crisis
06:49 Antibiotic use in livestock
08:30 What bacteria can't do
09:05 Outro
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Biology is the science of the 21st Century and everyone should know the fundamentals. In this series, Professor Lindsay Turnbull from the Department of Biology will guide you through key concepts, building a big picture of what Biology is all about. Based on her recent book, this video series is perfect for GCSE or A-level students, especially those looking for a University perspective.