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POM Exam 1 > Bac Structure/Function > Flashcards

Bac Structure/Function Flashcards

1
Q

LTA

A

lipotechoic acid, Gram positive

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2
Q

Staphylococcus

A

gram positive

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3
Q

Streptococcus

A

gram positive

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4
Q

Bacillus

A

gram positive

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5
Q

Peptidoglycan cell wall and outer membrane

A

gram negative

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6
Q

very thick peptidoglycan cell wall

A

gram positive

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7
Q

LPS and endotoxin

A

gram negative

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8
Q

O-antigen

A

gram negative

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9
Q

more likely to have pili

A

gram negative

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10
Q

Escherichia and E. coli

A

gram negative

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11
Q

most spirochetes

A

gram negative

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12
Q

no cell wall, pleomorphic

A

Mycoplasma spp

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13
Q

acid fast bacilli

A

Mycobacterium spp (TB)

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14
Q

Mycoplasma vs Mycobacterium

A

No cell wall and simple structures on outside vs has cell wall and thick waxy outer membrane-like surface with mycolic acid and unusual sugars

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15
Q

Strepto

A

chain

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16
Q

Staphylo

A

cluster

17
Q

LPS structure contains:

A

Lipid A, stacked sugars (core sugars +/- repeating O antigen)

18
Q

Endotoxin is the same as

A

Lipid A

19
Q

Envelope

A

everything from plasma membrane outwards, but not including extracellular polysaccharide capsule

20
Q

Capsule

A

slimy gelatinous surface structure

21
Q

What holds capsule to cell?

A

Covalent bonds, not physically anchored

22
Q

What is main function of capsule?

A

Anti-phagocytosis

Minor function: protection

23
Q

Disease causing microbes that have a capsule are often what?

A

Invasive fungi like pneumonia or meningitis

24
Q

Pili vs flagellum functions?

A

Pili mediate attachment to host cells, exchange genetic info, twitch mobility, and biofilm formation; flagellum are for locomotion

25
Q

Pili vs flagellum structure?

A

Pili made of pilin subunits; Flagellum made of flagellin subunits (H-antigen) attached to motor

26
Q

H-antigen is AKA…

A

Flagellin

27
Q

O-antigen is AKA…

A

saccharides in LPS

POM Exam 1 (14 decks)

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