Module 1 Test Flashcards
What is the unit used to measure microorganisms?
micrometers
List the groups of microorganisms from smallest to largest
Virus
Bacteria
Fungi
Protozoa
The three shapes of bacteria are
round = cocci
(coccus)
rectangular = rods/bacilli
(bacillus)
spiral/curved = spirilla
(spirillum)
Bacteria that are described as Gram positive are..
appear bluish black after being stained with the Gram stain
If a patient had gram negative baccilli in the CSF, it would mean that they had a possible infection with…
Bacteria
Gram stained is used for…
Identification of bacteria,
Selection of antibiotics,
and selection of disinfectants
Some bacteria are able to surface for long periods of time in dry conditions because they…
Can produce endospores
Formations of bacterial endospores occurs when…
growth conditions are adverse: too cold, too hot, too dry
the process by which bacteria reproduce is..
binary fission
Destruction of bacterial endospores…
is difficult, requires high temp (121C), requires use high level disenfectant
Rapidly growing bacteria have a generation time of approximately
15-30 mins
A colony of bacteria..
results from the multiplication of one bacterium
The phases of the growth curve listed in order are…
lag, log, stationary, death
the growth phase where all bacteria are multiplying at maximum rate is..
the log
During the stage of infection between contact and appearance of symptoms, incubation, microbes are in the the following growth stage
lag stage
