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Introduction to Microbiology

Midway High School Ms. Harborth 2013-2014. Introduction to Microbiology. What the Heck is Microbiology?. It’s the study of microscopic organisms (tiny living things, basically) What are some examples of these ?. Eeeek ! This can’t be right?!?. Why Study Microbiology?. First the bad news…

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Introduction to Microbiology

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  1. Midway High School Ms. Harborth 2013-2014 Introduction to Microbiology

  2. What the Heck is Microbiology? • It’s the study of microscopic organisms (tiny living things, basically) • What are some examples of these? Eeeek! This can’t be right?!?

  3. Why Study Microbiology? • First the bad news… • Microorganisms are the leading cause of death on earth EVER! • Know our enemy • Now the good… • Genetic engineering • Environmental • Immunology

  4. Questions • How much % of oxygen on Earth do you think comes from microbes? • What % of the earth’s biomass do you think comes from microbes? • How excited are you for this class?

  5. How’d We Get Here? • 1590 – First compound light microscope • Zacharias Janssen You are WELCOME!

  6. Who’s Our Daddy? • 1676 – First observation of bacteria “animalcules”. • Father of Microbiology • Anton Von Leeuwenhoek

  7. Goodbye, Smallpox • 1796 – First vaccine (smallpox) • Edward Jenner

  8. Pasteur • 1857 – Germ Theory of Disease • Louis Pasteur

  9. 1867 – Antiseptic surgery • Joseph Lister

  10. 1884- Koch’s Postulates of Disease Transmission • Robert Koch

  11. 1885 – Rabies Vaccine • Louis Pasteur

  12. 1929 – Discovery of Penicillin (first antibiotic) • Alexander Fleming

  13. 1938 – First electron microscope • Capable of magnifying specimens by 1,000,000 times!

  14. 1953 – Structure of DNA Revealed • Watson and Crick

  15. 1954 – Polio vaccine • Jonas Salk

  16. Not So Ancient History • Genetic engineering • Cloning • Human Genome Project • Biotechnology

  17. Size of Microbes • Virus – between 10 and 1000 nanometers • Bacteria – between 0.1 and 5 micrometers • Human eye can see as small as .1 mm • PS – nanometer = 1/1,000,000,000 of a meter micrometer = 1/1,000,000 of a meter

  18. Tools of Microbiology • Compound light microscope • Living organisms • 1,000 mag or less • Electron microscope • Non-living organisms • > 1,000 mag • Incubator

  19. Techniques • Staining • Microbial culture • Petri dish • Culture media • 3 pure culture techniques: • Inoculation • Isolation • Identification

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