Microbiology - PowerPoint PPT Presentation

1 / 23
About This Presentation
Title:

Microbiology

Description:

Microbiology Introduction and History Microbiology Introduction and History Beer Cheese Staphylococcal folliculitis Conjunctivitis Chicken pox What is Microbiology? – PowerPoint PPT presentation

Number of Views:476
Avg rating:3.0/5.0
Slides: 24
Provided by: Holly96
Category:

less

Transcript and Presenter's Notes

Title: Microbiology


1
Microbiology
  • Introduction and History

2
Microbiology Introduction and History
Cheese
Beer
Staphylococcal folliculitis
Chicken pox
Conjunctivitis
3
What is Microbiology?
4
Categories of Microorganisms
  • Bacteria
  • Archaeans
  • Some algae
  • Protozoa
  • Some fungi
  • Viruses (not technically a living thing)

5
3 Domains of Life
6
Why do we study microorganisms?
7
  • 1. Live on and in our body.
  • 2. Can make us sick.
  • 3. Would not be here without microbes.
  • 4. Get rid of our wastes.
  • 5. May clean up our messes (i.e. oil spills,
    ect.).
  • 6. Make many essential elements available to
    living things.
  • 7. Food source.
  • 8. Aid in digestion.
  • 9. Some used to make medicine (i.e.
    antibiotics).
  • 10. Important for genetic engineering.

8
Glowing Pigs and Jellyfish?
9
Some Terms to Know
  • Pathogen vs. Nonpathogen
  • Indigenous or Normal Flora
  • Opportunistic Pathogens
  • Infectious Disease
  • Microbial Intoxication

10
What was the first living organism on earth?
OR
Cyanobacteria
Archaea
11
Microbial infections have been around for a long
time!
Egyptian Mummy www.sciam.com/article.cfm?idmummy-
dna-reveal..
3,000 B.C. - Ruma, a Syrian boy, - depiction of
polio www.univie.ac.at/cga/art/history.html
12
Some important historical figures
13
Anton van Leeuwenhoek1632-1723
  • The Father of Microbiology
  • First to see live bacteria and protozoa.

Microscope consisted of only one lens and was
only 3-4 inches long. It required good lighting
and a lot of patience.
www.microscopy-uk.org.uk/intro/histo.html
http//www.ucmp.berkeley.edu/history/leeuwenhoek.h
tml
14
(No Transcript)
15
The Theory of Spontaneous Generation - Abiogensis
Francesco Redis Experiment 17th century
facstaff.gpc.edu
16
Cell Theory (1838)
  • Schleiden (left) and Schwann (right)
  • Proposed independently that all living things are
    made of cells

kentsimmons.uwinnipeg.ca
17
Biogenesis
  • Proposed by Rudolf Virchow 1858
  • Life only arises from preexisting life.

kentsimmons.uwinnipeg.ca
18
Louis Pasteur1822-1895
  • Discovered what occurs during alcoholic
    fermentation
  • Helped disprove spontaneous generation
  • Termed aerobes and anaerobes
  • Discovered Pasteurization
  • Discovered many vaccines
  • Contributed to germ theory of disease

19
Germ Theory of Disease
  • Theory that specific microorganisms cause
    specific infectious diseases.
  • For example, the bacteria Bacillus anthracis
    causes anthrax.

20
Robert Koch1843-1910
  • Contributed to germ theory of disease.
  • Discovered Bacillus anthracis produces anthrax.
  • Developed methods for fixing, staining, and
    photographing bacteria.
  • Developed methods of cultivating bacteria on
    solid media.
  • Was able to obtain pure cultures.
  • Discovered bacteria that cause tuberculosis and
    cholera.

21
Robert Koch
22
Kochs Postulates
  • 1. A microorganism must be present in every case
    of the disease.
  • 2. Isolate microorganism from diseased host and
    grow in pure culture.
  • 3. Same disease produced when microorganisms
    from pure culture are inoculated into healthy,
    susceptible hosts.
  • 4. Same microorganism must be recovered from
    experimentally infected hosts and grown again in
    pure culture.

23
The End
Write a Comment
User Comments (0)
About PowerShow.com