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Microbiology
General Microbio
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Cards (139)
What is the primary goal of medical microbiology?
To diagnose
infectious diseases
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How does medical microbiology diagnose infectious diseases?
By detecting
microorganisms
or their products
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What information does medical microbiology provide regarding microorganisms?
Antimicrobial
susceptibility of
isolated
microorganisms
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What is one aim of medical microbiology?
To control
infectious diseases
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Who constructed the first microscope?
and
Z. Janssen
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Who is considered the "father of microbiology"?
Anton van Leeuwenhoek
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What did Anton van Leeuwenhoek discover?
"
Animalcules
" and basic shapes of microbes
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What theory did Friedrich Henle propose?
The "
germ theory
"
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What did A. Pollender identify in 1849?
Bacillus anthracis
as
rods
in animal blood
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What significant contributions did Louis Pasteur make to microbiology?
Established microbiology as an independent
discipline
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What did R. Koch introduce for bacterial isolation?
Agar
media
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What did J. Lister develop for surgery?
The
antiseptic
method
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What did Otto Müller initiate in microbiology?
The
taxonomic
classification
of microbes
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When did the era of chemotherapy begin?
In
1910
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What did Alexander Fleming discover?
Penicillin
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What is the classification of organisms in bacterial taxonomy based on?
Biochemical
,
physiological
,
genetic
, and
morphologic
properties
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What are the three areas of bacterial taxonomy?
Classification
,
nomenclature
,
identification
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What is the purpose of nomenclature in bacterial taxonomy?
Naming organisms according to
international rules
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What is the broadest taxonomic rank for bacteria?
Kingdom
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What is the significance of the Gram staining method?
It divides
bacteria
based on
cell wall
structure
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What is one criterion for the classification of bacteria?
Growth on
media
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What does numerical taxonomy use for classification?
A large number of
unweighted characteristics
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What is the limitation of numerical taxonomy?
It does not account for
bacterial evolution
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What does phylogenetic classification measure?
Relatedness
between organisms
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What is the definition of a bacterial species?
A
genomically
coherent
group of
isolates
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What does G+C content indicate?
Similarity in closely related
bacteria
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What is the significance of ribosomal RNA in classification?
It allows elucidation of
evolutionary
relationships
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What are the major categories of eubacteria?
Gram-negative
and
Gram-positive
eubacteria
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What is a characteristic of Gram-negative eubacteria?
They have a complex
cell envelope
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How do Gram-positive eubacteria reproduce?
By
binary fission
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What is a defining feature of mycoplasmas?
They lack a
peptidoglycan
cell wall
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What are viruses classified based on?
Virion
morphology and
genome
properties
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What suffix do virus family names typically have?
-
viridae
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What is a basic difference between eukaryotic and prokaryotic cells?
Eukaryotic cells have a
nucleus
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What is the approximate size of prokaryotic cells?
0.5-3.0
µm
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What is the structure of prokaryotic chromosomes?
Single, circular DNA,
haploid
genome
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What is the function of ribosomes in eukaryotic cells?
Protein synthesis
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How is bacterial morphology studied?
Using
staining
and a
light microscope
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What is the size range for small bacteria?
0.5 µm
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What are the shapes of round-shaped bacteria called?
Cocci
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