Flashcards in MicroBioFinal Deck (101)
What percentage of all the cells in/on your body are actually your cells with your DNA?
Name 2 locations on/in your body where we find normal flora
According to scientific estimates, how long ago did the anerobic prokaryotes show up?
3.5 billion years ago
List Darwin's 2 key observations
1. overproduction of offspring
2. individual variation
Who disproved spontaneous generation, and what was the experiment called?
Pasteur; Swan-neck flask experiment
What is Semmelweis famous for?
Who accidentally discovered Penicillin?
What is Jenner famous for?
Who was the first to coin the term "cellulae" (cell)?
Where does Russell think life may have started on earth?
hydrothermal vents in ocean floor
List 3 groups of organisms that fall into the category of "Eubacteria" (aka Bacteria)?
gram+, gram-, acid-fast
List the steps of Biofilm formation in order
1. Planktonic Organism
2. Reversible attachment w/attachment pilus
3. Irreversible attachment w/slime layer
4. Microcolony formation and quorum sensing
5. Mature biofilm
6. Release of planktonic organism
Which term do we define as "programmed cell death"?
List 3 physical barriers in immune system
skin, mucous membrane, sweat
How are macrophage activated?
What do neutrophils do?
List the 4 key symptoms of inflammation
redness, heat, edema/swelling, pain
Which cell mediates the fever by releasing pyrogens?
After all of the complement proteins have been activated, what happens to the cell?
Which compounds do mast cells release to mediate inflammation?
histamine and heparin
Histamine, cytokines, and internal cell components that activate antigen independent cells
signal 0,1, or 2?
signal 0,1, or 2?
costimulation of B or T cells with cytokines
signal 0, 1, or 2?
Binding to free protein antigens
Activating the complement system
Binding to antigens on cells
Binding to viral antigens
Sally sneezed on charlie and he inhaled a pathogen. what type of transfer has occurred?
contact aersol droplets
What is the CD's #1 recommendation for preventing Nosocomial infection?
wash your hands