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Medical Microbiology > Extras > Flashcards

Extras Flashcards

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USMLE® Step 1 flashcards Biology 101 flashcards
1
Q

What are the major components of biofilm extracellular mix?

A

Consist of macromolecules such as polysaccharides proteins and nucleic acids

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2
Q

What are the three key phases of microsporidian life cycle?

A

Environmental phase, proliferative stage and spore-forming phase.

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3
Q

Scientific phylum name for Sac fungi?

A

Ascomycota

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4
Q

Scientific phylum name for club fungi?

A

Basidiomycota

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5
Q

What the difference in club and sac fungi spore contain structures?

A

Sac fungi form spores on sac called asci. Where as club fungi produce fruiting bodies that contain club shaped basidia where spores form.

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6
Q

Name two pathogens that are associated with acute necrotizing gingivitis (trench mouth)?

A 
P.intermedia 
Fusobacterium
Spriochetes 
Treponema 
HIV/AIDs
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7
Q

Four symptoms of meningitis?

A

Fever,drowsy, confused and severe muscle pain

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8
Q

What are euryarcheota?

A

Can be Methanogens, halophiles and thermacidophiles.

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9
Q

What is a methanogen?

A

Use hydrogen to reduce carbon dioxide to form methane

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10
Q

What are halophiles?

A

Microbes that live in very high salt environments

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11
Q

What are thermacidohpiles?

A

Microbes that optimum growth temp is 60-80 degrees and live at a low pH

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12
Q

Can protozoan reproduce asexually and sexually?

A

Yes

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13
Q

How do you classify protozoan?

A

Based on mobility and morphology

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14
Q

What percentage of genomes have prophage?

A

~70%

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15
Q

What forces are used in initial reversible biofilm binding?

A

Van Der Wals reactions

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16
Q

What polymers are used in irreversible binding?

A

Exopolymers, fimbrae, flagella, A-layers and S-layers

17
Q

What type of needle do bacteriophages have?

A

Hyperdermic

18
Q

What is a Quasispecies?

A

The idea that when a species is close to extinction similar species arise due to mutation.

19
Q

What is the average burst size for bacteriophages?

A

100-150 particles/ host cell

20
Q

What types of drugs have come from fungi?

A

Anticancer, Antifungal, immunosuppressants, antibiotics

21
Q

What are the 5 main fungal phyla?

A 
Basidiomycota 
Ascomycota 
Glomeromycota 
Zugomycota 
Chytridiomycota

Medical Microbiology (11 decks)

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