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Transcript
Domain
Archaea
Kingdom
Archaebacteria
Cell type
Prokaryotic
Cell structure
Cell wall, no peptidoglycan
Body type
Unicellular
Nutrition
Autotrophic and heterotrophic
Example
1. Thermoacidophiles
*hot, acidic environments (sulfur hot springs, thermal vents on the ocean
floor, and around volcanic vents)
*thrive in temperatures above 80 degrees Celsius & pH of 1-2
* many die in presence of oxygen!
2. Halophiles
*live in very salty environments (use salt to generate ATP)
*Great Salt Lake, Dead Sea (15% or more of salt)
*usually aerobic
*carry out photosynthesis using a protein instead of chlorophyll
3. Methanogens
*can not live in presence of oxygen (obligate anaerobes)
* uses CO2 during respiration and give off methane gas as a waste product
*found in: sewage treatment plants, swamps, bogs, and near volcanic vents...
also responsible for gases release from digestive tract... A.K.A. farts!
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Domain
Bacteria
Kingdom
Eubacteria
Cell type
Prokaryotic
Cell structure
Cell wall, peptidoglycan
Body type
Unicellular
Nutrition
Autotrophic and heterotrophic
Example
Streptococcus (strep throat)
e-coli
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pneumonia Staph infection
meningitis MRSA
gonorrhea E. coli
Bacillus anthracis
Strep throat
Strep mutans­cavities
syphilis
­rod shape
­2 round shape
­chain round
­bunch round
­spiral shape
­movement
­attachment and transfer DNA
­circular
­extra DNA that carries genes for toxins and resistance
Antibiotic-disrupts the growth and development of bacteria
Good Bacteria-fix nitrogen
-help with decay
-help with digestion
-make cheese and yogurt
-make medicines
http://www2.beavercreek.k12.oh.us/videos/28824/chp937402_700k.asf
http://www2.beavercreek.k12.oh.us/videos/25296/pgr25296_700k.asf
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--> Gram Staining: Hans Gram (1884)
**Gram Positive: Thick layer of peptidoglycan, stains purple, can be treated with
antibiotics
Bacterial Examples:
Lactobacilli (makes yogurt & buttermilk)
Actinomycetes (make antibiotics)
Clostridium (lockjaw bacteria)
Streptococcus (strep throat)
Staphylococcus (staph infections)
** Gram Negative: Thin layer of peptidoglycan, stains pink or
reddish, hard to treat with antibiotics
Bacterial Examples:
-Rickettsiae are parasitic bacteria carried by
ticks...Cause Lyme disease & Rocky Mountain
Spotted Fever
-cyanobacteria
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