1 / 14

Pathogenic Organisms

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.

petula
Download Presentation

Pathogenic Organisms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Pathogenic Organisms

  2. What does pathogen mean?

  3. 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

  4. Pathogen a Definition A disease causing microorganism

  5. What are some types of pathogen? Think, pair, share -

  6. Bacteria • Single celled organisms that lack a nucleus • Because they have no nucleus we call them prokaryotes • Classified as kingdoms Eubacteria and Archaebacteria • Can cause many diseases including salmonella, pneumonia, tetanus, and plague

  7. Anthrax BacteriaBacillus anthracis Source: http://www.bact.wisc.edu/Bact330/lectureanthrax Source: CDC with white blood cells

  8. Streptococcus pyogenes “flesh eating bacteria” http://img.medscape.com/pi/emed/ckb/infectious_diseases/211212-1641790-225243-1608843.jpg

  9. Fungi • Multicellular 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

  10. Aspergillus fumigatus Source: Chiba Univ., Japan

  11. Protozoans • Single celled organisms with a nucleus – may be photosynthetic or heterotrophic • Classified as the kingdom Protista • Can cause diseases such as giardiasis and cryptosporidium

  12. Giardia lamblia http://www.tulane.edu/~wiser/protozoology/notes/intes.html

  13. Virus • Very small particle of genetic material and proteins reproduces inside the cells of a host organism • 100 times smaller than bacteria • Cause diseases such as ebola, flu, mumps, measles, and rabies

  14. Viruses Papillomavirus Influenza Hepatitis B http://web.uct.ac.za/depts/mmi/stannard/emimages.html

More Related