Microbiology Exam IIII Part I with answers |! |! |! |! |! |!
What're Biofilms? - Correct answer ✔Result when organisms attach to a
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substrate by some form of extracellular matrix that binds them together in
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organized layers |!
Dominate structure in most natural environments on earth
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Quorum Sensing? - Correct answer ✔Communicate and cooperate in the
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formation and function of biofilms |! |! |! |!
Ignaz Semmelweis - Correct answer ✔Identified cause of childbed fever.
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Emphasized doctor cleanliness. |! |!
Puerpural Fever - Correct answer ✔Childbed Fever caused by S. Pyogenes
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contracted during child birth |! |! |!
Joseph Lister - Correct answer ✔Developed antiseptic surgical techniques
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Microbe Resistance? - Correct answer ✔High Resistance= Prions, Bacterial
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Endospores
Moderate Resistance= Pseudomonas, Tuberculosis, Staphylococcus a.,
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Protozoan Cysts |!
, Least Resistance= Vegetative Cells, Fungal Spores, Protozoan Trophozoites
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Moist Heat - Correct answer ✔Can use lower temperature and shorter
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exposure time due to penetration
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Dry Heat - Correct answer ✔Moderate to high temperatures needed. Cause
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dehydration and alters protein structure. |! |! |! |!
Thermal Death Time - Correct answer ✔Shortest length of time required to
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kill microbe
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Thermal Death Point - Correct answer ✔Lowest temperature required to kill
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all microbes
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Tyndallization - Correct answer ✔Intermittent sterilization for substances
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that cannot withstand autoclaving
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Microbiostatic - Correct answer ✔Slows growth of microbes, related to
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freezing.
Dessication - Correct answer ✔Gradual removal of water from cells, leads to
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metabolic inhibition |!
What're Biofilms? - Correct answer ✔Result when organisms attach to a
|! |! |! |! |! |! |! |! |! |! |!
substrate by some form of extracellular matrix that binds them together in
|! |! |! |! |! |! |! |! |! |! |! |!
organized layers |!
Dominate structure in most natural environments on earth
|! |! |! |! |! |! |!
Quorum Sensing? - Correct answer ✔Communicate and cooperate in the
|! |! |! |! |! |! |! |! |! |!
formation and function of biofilms |! |! |! |!
Ignaz Semmelweis - Correct answer ✔Identified cause of childbed fever.
|! |! |! |! |! |! |! |! |! |!
Emphasized doctor cleanliness. |! |!
Puerpural Fever - Correct answer ✔Childbed Fever caused by S. Pyogenes
|! |! |! |! |! |! |! |! |! |! |!
contracted during child birth |! |! |!
Joseph Lister - Correct answer ✔Developed antiseptic surgical techniques
|! |! |! |! |! |! |! |!
Microbe Resistance? - Correct answer ✔High Resistance= Prions, Bacterial
|! |! |! |! |! |! |! |! |!
Endospores
Moderate Resistance= Pseudomonas, Tuberculosis, Staphylococcus a.,
|! |! |! |! |! |!
Protozoan Cysts |!
, Least Resistance= Vegetative Cells, Fungal Spores, Protozoan Trophozoites
|! |! |! |! |! |! |!
Moist Heat - Correct answer ✔Can use lower temperature and shorter
|! |! |! |! |! |! |! |! |! |! |!
exposure time due to penetration
|! |! |! |!
Dry Heat - Correct answer ✔Moderate to high temperatures needed. Cause
|! |! |! |! |! |! |! |! |! |! |!
dehydration and alters protein structure. |! |! |! |!
Thermal Death Time - Correct answer ✔Shortest length of time required to
|! |! |! |! |! |! |! |! |! |! |! |!
kill microbe
|!
Thermal Death Point - Correct answer ✔Lowest temperature required to kill
|! |! |! |! |! |! |! |! |! |! |!
all microbes
|!
Tyndallization - Correct answer ✔Intermittent sterilization for substances
|! |! |! |! |! |! |! |!
that cannot withstand autoclaving
|! |! |!
Microbiostatic - Correct answer ✔Slows growth of microbes, related to
|! |! |! |! |! |! |! |! |! |!
freezing.
Dessication - Correct answer ✔Gradual removal of water from cells, leads to
|! |! |! |! |! |! |! |! |! |! |! |!
metabolic inhibition |!
