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ASU MIC 205 PENTON EXAM 1 NEWEST ACTUAL EXAM COMPLETE 200 QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW VERSION!! $27.99   In winkelwagen

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ASU MIC 205 PENTON EXAM 1 NEWEST ACTUAL EXAM COMPLETE 200 QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW VERSION!!

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ASU MIC 205 PENTON EXAM 1 NEWEST ACTUAL EXAM COMPLETE 200 QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW VERSION!!

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ASU MIC 205 PENTON EXAM 1 NEWEST
2024-2025 ACTUAL EXAM COMPLETE 200
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!

What is an endospore? - CORRECT ANSWER-a dormant,
tough, and temporarily non-reproductive structure produced by
certain bacteria.


Why do bacteria make endospores - CORRECT ANSWER-to
survive in unfavorable environments
they can form endospores to protect their genetic material and
essential cellular components until conditions improve.
ex. depleted nutrients, extreme temps


What bacterial group discussed in class is medically important
and form endospores?How does this relate to C. diff? -
CORRECT ANSWER-Bacteria that form endospores such as
bacillus and clostridia
Is relevant medically because its resistant to treatment and can
cause death

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It relates to C diff because they both are both G+, have
endospores that are hard to treat and have the same symptoms


What does it mean for a bacterial growth medium to be
selective? - CORRECT ANSWER-A selective growth medium
is designed to inhibit the growth of certain types of bacteria
while allowing others to grow
This is achieved through the addition of specific substances,
such as antibiotics or specific nutrients, that favor the growth of
target organisms


What does it mean for a bacterial growth medium to be
differential? - CORRECT ANSWER-allows multiple types of
bacteria to grow but contains specific indicators that help
distinguish between them based on their biochemical
characteristics. These indicators can change color or produce a
precipitate in response to specific metabolic activities.


Understand the selective aspects of MacConkey's agar (MAC). -
CORRECT ANSWER-effectively isolate Gram-negative
bacteria by inhibiting Gram-positive bacteria through the
inclusion of bile salts and crystal violet, facilitating further
analysis and identification of clinically relevant pathogens

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Understand the differential aspects of MacConkeys agar (MAC)
- CORRECT ANSWER-enable the identification and
differentiation of lactose fermenting and non-fermenting Gram-
negative bacteria


What information does MAC provide about bacteria growing on
this medium? - CORRECT ANSWER-Lac+ produce lactic acid,
lowers the pH, changing the colonies to pink (due to a pH
indicator-neutral red)Lac - do not ferment lactose, no lactic acid
produced, white


What makes Mannitol Salt agar (MSA) selective? - CORRECT
ANSWER-MSA contains a high concentration of salt (7.5%
sodium chloride), inhibiting the growth of most bacteria except
halophilic organisms like Staphylococci.


How does Mannitol Salt agar (MSA) function differentially? -
CORRECT ANSWER-MSA differentiates between mannitol
fermenters and non-fermenters based on color changes in the
medium, aiding in identifying pathogenic Staphylococcus
species.


What information does MSA provide about bacteria growing on
this medium? - CORRECT ANSWER-If organism can ferment
mannitol, acid produced turns the phenol red to yellow.

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What specific bacteria can be identified in Mannitol salt agar
(how are they clinically important)? - CORRECT ANSWER-
GRAM +, Staphylococcus aureus


What type of clinical samples is plated on Blood agar (BAP)? -
CORRECT ANSWER-Not used selectively
Used to grow a variety of bacteria and then be able to tell them
apart by how they react to the blood in the plate


What broad type ofbacteria are we looking for from a sample
plated on BAP? - CORRECT ANSWER-looking for bacteria
that can perform hemolysis and the lysis of red blood cells;
differentiate STREP


Beta: - CORRECT ANSWER-they lyse (break down release
contents) red blood cells, leading to a clear zone around the
colonies on blood agar.


Alpha - CORRECT ANSWER-these bacteria partially lyse
(break down release contents) red blood cells, resulting in a
greenish discoloration around the colonies due to the reduction
of hemoglobin to methemoglobin.

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