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Microbiology Lab Final Exam Practice Questions and Answers (100% Pass)
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Microbiology Lab Final Exam Practice Questions and Answers (100% Pass)
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©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Monday, July 29, 2024 12:15 PMMicrobiology Lab Final Exam Practice
Questions and Answers (100% Pass)
agent that kills bacteria upon exposure - ✔️✔️bacteriocidal
agent naturally produced by microorganisms - ✔️✔️antibiotic
agent that slows the growth of bacteria - ✔️✔️bacteriostatic
agent artificially synthesized or manipulated from other products - ✔️✔️antimicrobial
targets DNA gyrase, preventing DNA replication within a cell - ✔️✔️novobiocin
Disrupts cell wall stability, eventually leading to cell lysis - ✔️✔️penicillin
binds with bacterial ribosomes to prevent cell growth and cell division - ✔️✔️gentamicin
the mold that alexander fleming observed preventing bacterial growth was -
✔️✔️penicillium notatum
since the discovery and use of antibiotics, we no longer need to worry about bacterial
infections - ✔️✔️false
penicillin works by - ✔️✔️disrupting cell wall stability
novobiocin prevents the function of ______ in a cell - ✔️✔️DNA gyrase
bacteriostatic antibiotics cause an inhibition of growth rather than cell lysis and death -
✔️✔️true
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, ©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Monday, July 29, 2024 12:15 PM
gentamicin binds with bacterial _______ - ✔️✔️ribosomes
the effective zone of inhibition is the same for all antibiotics - ✔️✔️false
an antibiotic is a synthetic drug produced in a laboratory - ✔️✔️false
______ is a genus that produces antibiotics - ✔️✔️all of the above: Bacillys,
Cephalosporium, and Streptomyces
penicillin is produced by a ____ - ✔️✔️mold
novobiocin is a bacteriostatic, narrow-spectrum antibiotic - ✔️✔️true
gentamicin is synthesized by a ___ - ✔️✔️gram-positive bacteria
bacteriocidal agents kill bacteria by _____ - ✔️✔️cell wall lysis
resistant bacteria will exhibit ____ during a kirby-bauer diffusion test - ✔️✔️no zone of
inhibition
a spreader is used when inoculating a kirby-bauer diffusion plate to ___ - ✔️✔️create a
uniform bacterial lawn
zones of inhibition should be measured after they exceed 25 mm - ✔️✔️false
the diagram below illustrates resistance to drug ___ (nothing around A, little around B,
large around C) - ✔️✔️A
______ are asexually produced spores of the penicillum fungus - ✔️✔️conidia
describes individual colonies on a plate's surface - ✔️✔️colony forming unit
the number of individuals doubles each generation - ✔️✔️exponential growth
cloudiness of a fluid caused by large numbers of particles/organisms - ✔️✔️turbidity
the measure of the light intensity absorbed by a sample - ✔️✔️absorbance
asexual reproduction resulting in two daughter cells - ✔️✔️binary fission
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