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Exam (elaborations)

Microbiology Lab Final Exam Study Guide & Practice Questions

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25 pages

2026/2027

Institution Medical Microbiology

Course Medical Microbiology

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Microbiology Lab Final Exam Study Guide & Practice Questions

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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 antimicrobial
other products

targets DNA gyrase, preventing DNA replication novobiocin
within a cell

Disrupts cell wall stability, eventually leading to cell penicillin
lysis

binds with bacterial ribosomes to prevent cell gentamicin
growth and cell division

the mold that alexander fleming observed penicillium notatum
preventing bacterial growth was

since the discovery and use of antibiotics, we no false
longer need to worry about bacterial infections

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penicillin works by disrupting cell wall stability

novobiocin prevents the function of ______ in a cell DNA gyrase

bacteriostatic antibiotics cause an inhibition of true
growth rather than cell lysis and death

gentamicin binds with bacterial _______ ribosomes

the effective zone of inhibition is the same for all false
antibiotics

an antibiotic is a synthetic drug produced in a false
laboratory

______ 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 true
antibiotic

gentamicin is synthesized by a ___ gram-positive bacteria

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bacteriocidal agents kill bacteria by _____ cell wall lysis

resistant bacteria will exhibit ____ during a kirby- no zone of inhibition
bauer diffusion test

a spreader is used when inoculating a kirby-bauer create a uniform bacterial lawn
diffusion plate to ___

zones of inhibition should be measured after they false
exceed 25 mm

the diagram below illustrates resistance to drug ___ A
(nothing around A, little around B, large around C)

______ are asexually produced spores of the conidia
penicillum fungus

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 turbidity
particles/organisms

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Uploaded on: October 20, 2026
Number of pages: 25
Written in: 2026/2027
Type: Exam (elaborations)
Contains: Questions & answers

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