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Principles of Microbiology > Exam 3- TopHat > Flashcards

Exam 3- TopHat Flashcards

1
Q

Cyanobacteria are the only prokaryotes that use __________ to hydrolyze water with O2-release.

A

Both photosystems I and II

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2
Q

Which of the following form spores?

A

Bacillus and Clostridium

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3
Q

Which group of proteobacteria includes bacteria like bdellovibrio that parasitize other proteobacteria?

A

Deltaproteobacteria

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4
Q

Which of the following bacteria generally lack a cell wall?

A

Mycoplasma and L form

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5
Q

What is the cell wall structure of Verrucomicrobia?

A

Have peptidoglycan wall and display tubulin-containing wart-like cytoskeletons projections

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6
Q

Which of the following is NOT a bacterial product that contributes to human body odors?

A

Ethyl butyrate

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7
Q

Which of the following should be relatively free from resident microbes in a healthy individual?

A

Lungs

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8
Q

Fred and George Weasley would like to make Snape’s lunch smell like unwashed socks. Which of the following should they magic into his meal?

A

Propanoic acid

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9
Q

Which of the following quorum sensing molecules are widely recognized by many Gram positive and negative species?

A

LuXS-encoded autoinducer 2 (AI2)

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10
Q

Biofilms confer which of the following advantages on bacteria?

A

Enabling persistence adherence and resistance to bacteria host defenses and antimicrobial agents

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11
Q

Which of the following is NOT a component of biofilm EPS?

A

Polystyrene

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12
Q

Histoplasma capsulatum is a dimorphic fungus. This means that it can:

A

Be single cellular or form mycelia

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13
Q

Which of the following clades contain morels and truffles, which do NOT form elaborate fruiting structures ?

A

Ascomycota

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14
Q

An unknown fungus has the following characteristics: forms mycelial structures, life cycle transitioning between n, n+n and 2n phases, and forms conidiophores. How is this fungi best classified?

A

Ascomycota

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15
Q

Which of the following CORRECTLY matches the type of interaction with the bacteria and N fixation rate?

A

Free-living, Rhodospirillum, 10-80 kg N/ha/y fixation rate

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16
Q

Which fungus digests lignin?

A

Pleurotus ostreatus or White rot fungus

17
Q

Which of the following pathogens is the most virulent?

A

Pathogen with LD50 = 4 cfu

18
Q

Examples of mechanisms of microbial attachment include

A

Fimbriae and pertactin

19
Q

Laboratory analysis of a patient suspected to have bacterial meningitis would be performed with which type of sample?

A

Lumbar puncture

20
Q

Which of the following are NOT expected to reduce R0 for Ebola?

A

Washing the dead bodies

Principles of Microbiology (26 decks)

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