Microbio 211 lecture notes - Jan 24(first day of class Office Hours 4:45-5:30 Either in SHW 12 or patio area(Main Read the boxes in the textbook(case

Microbio 211 lecture notes - Jan 24(first day of class...

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Jan 24 (first day of class) Office Hours 4:45-5:30 Either in SHW 12 or patio area (Main) Read the boxes in the textbook (case studies). Will probs be some test questions Microbiology is everywhere Why are bees disappearing? Fungus attacking hives and killing off bees. Global warming makes it worse. Bats dying off bc of fungal disease as well Microbes are important Micro= really really small Only one bacteria you can see with the naked eye. Umbrella of Microbiology Bacteria Archaea Fungi Protists Algae Nonliving relm: Viruses Prions Rocks in the picture in lecture slide are stromatolites (dead, fossilized remains). ***Test question: remember that virtually stromatolites are NOT living!!!!*** Cyanobacteria: Green bc it does photosynthesis. Releases oxygen. Important because they provided oxygen for atmosphere. Important bc w oxygen you can make ATP (with aerobic cellular respiration), which allows cells to become more complex. Nutrient Cycling When a living thing dies, all the stuff that makes up an organism is going to get recycled. The decomposers break down living stuff, returning nutrients to the soil. Jan 29
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***READ CASE STUDIES in the book** What is microbiology and why do we care? Stromatolites (bacteria) bacteria was the earliest form of life. Cyanobacteria (green, photosynthesis, creates oxygen). These bacteria were most similar to cyanobacteria. The oxygen was a big deal because it makes it easier to make energy. We have finite resources on this planet, so we need to recycle them. When a living thing dies, bacteria decompose the organism. Microbiology= the study of microbes What are microbes? Listeria Positive agent of gastric intestinal distress (food poisoning) Amoeba Proteus Very deadly Diatoms Silica in cell walls (building block of glass) Gorgeous under microscope Important for pools and for nutrient cycling Human pinworm Tiny worm Eggs = incredibly small and lightweight (virtually impossible to get rid of them) Treponema pallidum Spirochaete (shape of Treponema pallidum on slide) Causes syphilis Neurospora crassa Yeast (fungi) Fungal infections are hard to get rid of Their cells are like human cells Selective toxicity- a drug is toxic towards one kind of organism but not the other There isnt enough difference between our cells and their cells to use selective toxicity Human Papillomavirus HPV Over 30 diff strains of HPV. Easily 80% of our population is infected with HPV. At least 5 of the 30 plus strains are known to cause cancer Not just cancer in females Technically we have a vaccine against cancer bc HPV causes cancer Why we care about microbiology ANTIBIOTIC RESISTANCE
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MRSA Resistant to most antibiotics (hard to treat) Going septic or suffering from sepsis, this means the bacteria has gotten into the bloodstream and is moving through the body (very dangerous) VRSA (vacamasion? resistance staff virus)
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