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19 Cards in this Set

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  • Back
  • 3rd side (hint)
bacteriophages
viruses that infect bacteria
lysis (lytic)
virus that enters a cell, makes a copy of itself and causes the cell to burst.
pathogen
disease-causing agent, such as bacterium or fungus
retroviruses
virus that contain RNA as its genetic info
vaccine
injection of a weakened or mild form of a pathogen to produce immunity
gram stain
method to determine the two different types of cell walls (one violent-gram positive and one red-gram negative)
see page 473
obligate aerobes
require constant supply of oxygen
obligate anaerobes
live in absence of oxygen
toxins
poison that produces illness by disrupting bodily functions
faculative anaerobes
can survive with/out O2
binary fission
type of asexual reproduction in which a prokaryote replicates its DNA and divides in 2 -producing two identical daughter cells
conjugation
form of asexual reproduction in which paramecia and some prokaryotes exchange genetic info
endospore
type of spore formed when a bacterium produces a thick internal wall that encloses its DNA and a portion of its cytoplasm
a way of continuing species during harsh conditions
saprophyte
gets from decaying organism>>>decomposer
symbiosis
relationship in which two species live closely together
legume
live in the soil and on the roots of plants that convert nitrates and nitrites into ammonia
nitrogen fixation
process of converting nitrogen gas into ammonia
virulence
strength of a disease; ability to do harm
capsid
protein coat of a virus