Bacteria and Viruses
Card Set Information
Bacteria and Viruses
BIO 100 exam
cells lack a membrane bound nucleus and any other membrane bound organelle
kingdom of prokaryotic
oldest group of living organisms?
3.5 billion years
by definition bacteria are all ?
spiral shaped cylinders
are small in size, generally not visible to the naked eye and are measured in terms of micrometers
acquire the carbon compound they need from their environment
heterotrophic bacteria can either be
parasites or saprophytes
most bacteria are _____
extract necessary carbon compounds from dead/decaying organic matter
extract the carbon compounds they need from living organic matter
bacteria that are self feeding
can make everything they need from the environment
bacteria that use light energy
most bacteria are _______ _______ and are important ______ organisms
causes whooping cough
highly contagious in infants
causes lyme disease
sign of lyme disease
causes bubonic plague
transmission by flea bites or rats
fatal bacterial infection
food contaminating organisms?
symptoms of e coli
bloody diarrhea occasionally leads to kidney failure
severe blood and kidney problems
cause of e coli?
ingestion of undercooked, contaminated ground beef
contact with human/animal feces
person to person
symptoms of salmonella?
signs of salmonella?
severe food poisioning
cause of salmonella?
handling waste from infected animals
eating undercooked meat
juice from raw meat or contaminated food
____ could have salmonella
if a chicken gets infected with salmonella, it could get into ?
clostridium butlinum causes
a potentially fatal form of food poisoning from inadequately sterilized canned vegetables, smoked meats and fish
toxin used to kill botulism =
spore from botulism ?
botulism bacteria is ____, obligant ______, which means oxygen is ______
allow to get rid of lines and wrinkles
how do botox injections help?
wrinkles go away because you paralyze the muscles
common bacteria on surface of your skin
how does MRSA spread?
how does MRSA get in to your body?
through wounds, abrasions
bad thing about MRSA?
seriously drug resistant
grows very quickly
violate rule, use RNA for genetic info
will attack host cell and inject genetic info into that cell
nonliving infectious particles composed of a nucleic acid core (DNA or RNA) surrounded by a protein coat
viruses are _____ specific
host cells could be?
viruses jump from one species to another, what is the easiest jump? example?
from pigs to humans
ex swine flu
5 viral diseases?
this viral disease never goes away
type 1 herpes?
type 2 herpes
100% fatal if not treated
infect cells responsible for immune response
cant treat disease, but can attempt to treat symptoms
transmission- fecal contamination, then water ingestion
who invented to oral polio vaccine?
positives of polio vaccine?
immunity to polio stays with you your whole life
can easily be administered
comes and goes
not in north America yet
symptoms of ebola virus?
hemorrhaging internally from eyes, mouth, ears
death statistics of people with ebola?
50-90% of people die within 2 weeks