Microbes: interactive lessons
Year 11 SCX. Microorganisms, disease and immunity Each chapter is a narrated, animated lesson with activities and exam practice. Turn your sound on, and use Chrome for the Google voice.
Origins of life and cells
Prebiotic Earth, the Miller–Urey experiment, cell theory, MRS GREN and prokaryotes vs eukaryotes.
Chapter 2 · LOs 7–16Bacteria and how they live
Culturing microbes, bacterial structure, binary fission, feeding, excretion and respiration.
Chapter 3 · LOs 17–18Enzymes
Active sites, the enzyme mechanism, and how temperature and pH affect enzymes.
Chapter 4 · LOs 19–22Bacterial growth
The growth curve, ideal conditions, extremophiles and why growth stops.
Chapter 5 · LOs 23–30Fungi and viruses
Rhizopus and yeast, fungal reproduction and feeding, virus structure and replication.
Chapter 6 · LOs 31–42Useful microbes
Fermentation, food making, the gut microbiome, decomposers, sewage, and the nitrogen and carbon cycles.
Chapter 7 · AS 92020 practiceInvestigating yeast (AS 92020)
A virtual yeast respiration investigation, written up at Achieved, Merit and Excellence.
Chapter 8 · LOs 43–50Pathogens and food safety
Pathogens and how they spread, food poisoning, abiotic and biotic factors, preservation and cleaning products.
Chapter 9 · LOs 51–54Antibiotics and resistance
Antibiotics, how resistance evolves, MRSA and MDR-TB, and comparing chemical defences.
Chapter 10 · LOs 55–56, immunity extension 1–4The first and second lines of defence
Skin, lysozyme, sebum, blood clotting, phagocytosis, inflammation and cell signalling.
Chapter 11 · LOs 57–64, immunity extension 5–6Specific immunity and vaccines
Antibodies, clonal expansion, active and passive immunity, vaccines, herd immunity, Pasteur and Koch.
Eleven chapters covering all 64 learning outcomes in the Year 11 SCX Microbes notes, plus the six immunity extension outcomes. Chapter 7 practises the AS 92020 internal assessment. Exam practice is graded Achieved, Merit and Excellence.