MIC LEC EXAMROPARA LEC
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38 Terms
23
how many phyla does the domain bacteria have?
32
how kany classes does the domain bacteria have?
5
how many subclass does the domain bacteria have?
77
how many orders does the domain bacteria have?
14
how many suborders does the domain bacteria have?
182
how many families does the domajn bacteria have?
871
how many genera does the domain bacteria have?
5,007
how many species does the domain bacteria have?
cocci
these are round or spherical bacteria
bacilli
these are rectangular or rod-sha0ed bacteria
spirillia
these are curfed and spiral-spahed bacteria
binary fission
bacterias reproduce to what process?
organism’s generation time
what do you fall the time it takes for one bacterial cell to split into two cells?
diplococci
what do you call a cocci that is in pair?
staphylococci
what do you call a cocci that is in clusters?
tetrads
what do you call a cocci that are seen in packets of four?
octads
what do you call a cocci that can be seen in packets of eight?
rods
bacilli are often reffered to as ____
bacilli
they may be short or long, thick or thin qnd pointed or with curved or blund ends.
coccobacilli
what do you call those rods that are quite short, resembling an elongated cocci?
curged and spiral-shaped bacilli
these are placed into a third morphologic grouping
a bird
what does a pair of curved bacilli resemble?
spirochetes
what do they refer to spiral-shaped bacteria?
tre0onema pallidum
this is tightly coiled and the cause of syphilis
pleomorphic
these are bacterias that exist in a variety of shapes
pleomorphism
it is the ability to exist in a variety of shapes
colorless and transparent
what color are most bacteria?
staining
in this method, the bacteria are smeared onto a glass microscope slide, air-dried, and then “fixed”
heat fixation
is usually accomplished by passing the smear through a Bunsen burner flame.
methanol fixation
it is accomplished vy flooding the smear with abdolute methanol for 30 seconds, is a more satisfactory fixation technique.
simple stain
it is sufficient to determine bacterial shape and morphologic arrangement.
dye
it is applied to the fixed smear
oil immersion lens
which part of the microscope is used to examine a smear?
structural staining procedure
these are the procedures used to observe bacterial capsules, spores, and flagella
differencial staining procedures
the gram and acid-fast dtaining procedures are referred to as ____
differential staining procedures
these procedures enable microbiologists to differentiate one group of bacteria from another
Dr. Hans Christian Gram
who developed the gram staining procedure?