Straighterline Microbiology Exam Questions And Answers. Verified and Updated.
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Course
STRAIGHTERLINE MICROBIOLOGY
Institution
STRAIGHTERLINE MICROBIOLOGY
Straighterline Microbiology Exam Questions
And Answers. Verified and Updated.
Semisolid media shows what?
motility
solid media is best for?
isolating/culturing bacteria
What are the terms for a media whose exact chemical compositions are known?
synthetic; defined
allows growth of several ty...
Straighterline Microbiology Exam Questions
And Answers. Verified and Updated.
Semisolid media shows what?
motility
solid media is best for?
isolating/culturing bacteria
What are the terms for a media whose exact chemical compositions are known?
synthetic; defined
allows growth of several types of microbes and displays visible differences among those
microbes
differential media
suppress unwanted microbes and encourage desired microbes
selective media
a culture medium containing ingredients that will remove dissolved oxygen from the medium to
allow the growth of anaerobes
reducing media
used to maintain and preserve specimens that have to be held for a period of time before clinical
analysis
transport media
used to test the effectiveness of antimicrobial drugs
assay media
used by industrial and environmental microbiologists to count the numbers of organisms in milk,
water, food, soil, and other samples
enumeration media
What are the five I's of microbiology?
inoculation, incubation, isolation, inspection, identification
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
,used to transfer bacteria from one place to another
innoculating loop
a culture containing a single kind of microorganism
pure culture
microbial culture consisting of two or more species
mixed culture
What microscope has an image that is brightly illuminated specimens surrounded by a black
field.
dark field
which microscope is used for observing intracellular structures such as bacterial spores, granules,
and organelles, as well as the locomotor structures of eukaryotic cells such as cilia. (in black-
and-white)
phase-contrast
which microscope provides a detailed view of unstained, live specimens by manipulating the
light. It has additional refinements, including two prisms that add contrasting colors to the image
and two beams of light rather than a single one.
differential interference
which microscope uses a laser beam of light to scan various depths in the specimen and deliver a
sharp image focusing on just a single plane. It is thus able to capture a highly focused view at
any level, ranging from the surface to the middle of the cell.
conofocal
which microscope would be the instruments of choice for viewing the detailed structure of cells
and their organelles and viruses. This microscope produces its image by transmitting electrons
through the specimen.
TEM
which microscope bombards the surface of a whole metal-coated specimen with electrons while
scanning back and forth over it. A shower of electrons deflected from the surface is picked up
with great fidelity by a sophisticated detector, and the electron pattern is displayed as an image
on a television screen.
SEM
Describing the group of bacteria that have a cell wall that is structurally less complex and
contains more peptidoglycan than the cell wall of gram-negative bacteria. Stains purple
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
,gram-positive
Describing the group of bacteria that have a cell wall that is structurally more complex and
contains less peptidoglycan than the cell wall of gram-positive bacteria. Stains pink
gram-negative
3 shapes of bacteria
coccus, bacillus, spirillum
One can generalize that all _______, about half of the ___________, and a small number of
________ have flagella
spirilla; bacilli; cocci
pilli are only found on _____________ cells
gram-negative
function in cell wall maintenance and enlargement during cell division; move cations across the
cell envelope; stimulate a specific immune response. gram positive cells walls
teichoic acid and lipoteichoic acid
The uppermost layer of the OM "sandwich" contains ____________ (LPS). The polysaccharide
chains extending off the surface function as cell markers and ____________. The lipid portion of
LPS has been referred to as ___________ because it stimulates fever and medical shock
reactions in gram-____________ infections such as meningitis and typhoid fever.
lipopolysaccharide; receptors; endotoxin; negative
What are 4 bacterial endospore diseases?
lockjaw; colitis; gas gangrene; botulism
cold loving archaea
psychophilies
heat loving archaea
Thermophiles
vacuole merged with a lysosome
phagosome
where is the most atp generated?
mitochondria
what is actin filament responsible for?
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
, cellular movements
what are microtubules responsible for?
maintaining cell structure when cell walls arent present (mitosis)
What are intermediate filaments responsible for?
structural reinforcement of the cell
Fill in the blanks for bacterial first. then eukaryotic. then viruses.
+ - - - - - - + 3; + 100; - - - - - - - - .2
long, threadlike cells found in the bodies of filamentous fungi
hyphae
woven, intertwining mass of hyphae that makes up the body or colony of a mold is called a
__________
mycelium
what are responsible for the fungal reproductive spores
hyphae
fungal infections
mycoses
Move from left to right (one column at a time) and fill in the blanks.
unicellular cysts; chitin/cellulose heterotrophic; chloroplasts; multicellular unicellular none
heterotrophic ova
Which of the following is not found in all bacterial cells?
a. cytoplasmic membrane
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
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