pathogenic organisms
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Pathogenic Organisms. What does pathogen mean?. Etymology. Let’s break down the word into its roots patho – greek word pathos meaning suffering or disease gen – greek word genes meaning to be born or produced. Pathogen a Definition. A disease causing microorganism. - PowerPoint PPT PresentationTRANSCRIPT
Pathogenic OrganismsPathogenic Organisms
What does pathogen What does pathogen mean?mean?
EtymologyEtymology
Let’s break down the word into its roots
patho – greek word pathos meaning suffering or disease
gen – greek word genes meaning to be born or produced
Pathogen a DefinitionPathogen a Definition
A disease causing microorganism
What are some types of What are some types of pathogen?pathogen?Think, pair, share -
BacteriaBacteriaSingle celled organisms that lack
a nucleusBecause they have no nucleus
we call them prokaryotesClassified as kingdoms
Eubacteria and ArchaebacteriaCan cause many diseases
including salmonella, pneumonia, tetanus, and plague
Anthrax BacteriaAnthrax BacteriaBacillus anthracisBacillus anthracisSource: http://www.bact.wisc.edu/Bact330/lectureanthrax
Source: CDC
with white blood cells
Streptococcus pyogenesStreptococcus pyogenes
“flesh eating bacteria” http://img.medscape.com/pi/emed/ckb/infectious_diseases/211212-1641790-225243-
1608843.jpg
FungiFungiMulticellular with a nucleus,
heterotrophs (consume other organisms for food) with cell walls containing chitin
This kingdom includes mushrooms, molds, mildew, and yeas
Diseases such as athletes foot, pneumonia, or meningitis
Aspergillus fumigatusAspergillus fumigatusSource: Chiba Univ., Japan
ProtozoansProtozoansSingle celled organisms with a
nucleus – may be photosynthetic or heterotrophic
Classified as the kingdom Protista
Can cause diseases such as giardiasis and cryptosporidium
Giardia lambliaGiardia lamblia
http://www.tulane.edu/~wiser/protozoology/notes/intes.html
VirusVirusVery small particle of genetic
material and proteins reproduces inside the cells of a host organism
100 times smaller than bacteriaCause diseases such as ebola,
flu, mumps, measles, and rabies
VirusesVirusesPapillomavirus
Influenza
Hepatitis B
http://web.uct.ac.za/depts/mmi/stannard/emimages.html