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Micro Exam 1 > L 1-2 > Flashcards

L 1-2 Flashcards

1
Q

Name 2 g+ cocci

A

Staph aureus

Strep pyogenes

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2
Q

Name 1 g- cocci

A

Neisseria gonorrhoeae

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3
Q

Name 2 g+ bacilli

A

Bacillus anthracis

Clostridium tetani

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4
Q

Name 2 g- bacilli

A

E. Coli

Pseudomonas aeruginosa

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5
Q

Name 1 acid-fast

A

Mycobacterium tuberculosis

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6
Q

Name 1 actinomycetes

A

Actinomyces isrealii

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7
Q

Name 2 spirochettes

A

Treponema pallidum

Borrelia burgdorferi

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8
Q

Name 1 mycoplasmas

A

Mycoplasma pneumoniae

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9
Q

Name 1 chlamydiae

A

Chlamydia trachomatis

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10
Q

Name 1 rickettsiae

A

Rickettsia rickettsii

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11
Q

What bacterium lacks a cell wall?

A

Mycoplasma pneumoniae

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12
Q

glycoprotein vs glycolipid

A

glycoproteins =>receptors

glycolipids =>markers

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13
Q

What groups of antibiotics attack peptidoglycan?

A

penicillin, beta-lactams, cephalosporin

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14
Q

actinomyces isrealii is gram pos/neg?

A

gram pos

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15
Q

Corynebacterium diphtheriae gram +/-?

A

gram +

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16
Q

Characteristics of gram + cell wall

A 
thicker
less fat
retains chrystal violet
stains purple/blue
Teichoic acid on outer layer (WTA)
Lipoteichoic acid through wall into membrane (LTA)
17
Q

Characteristics of gram - cell wall

A

thinner
more fat
stains red with safranin
lipopolysaccharide (LPS)

18
Q

Functions of teichoic acid and LTA

A 
adherence to cells
anti-phagocytosis
DNA uptake
magnesium binding
endotoxin-like activities
19
Q

Lipopolysaccharide

A

LPS
Part of gram (-) bac outer membrane
oligosaccharide portion outermost-serotype
Lipid A in cell wall=> endotoxin effects like cytokines, inflammation

20
Q

products of periplasmic space

A

nuclease, protease, catalase, beta-lactamase

21
Q

Acid fast cell walls

A

have peptidoglycan layer
stain red/pink
Mycolic acid layer-waxy coat=>resists therapy
Tetrameric porins

22
Q

3 examples of acid fast bac

A

Mycobacterium tuberculosis
Nocardia asteroides
M. Leprae

23
Q

6 bacteria with a capsule

A 
Strep. pneumoniae
Klebsiella pneumoniae
Haemophilus influenzae
Pseudomonas aeruginosa
Neisseria meningitis
Staph. aureus
24
Q

4 flagellar arrangments

A

monotrichous
lophotrichous
amphitrichous
peritrichous

25
Q

explain serotyping with O, K, H

A

oligosaccharide
kapsule
flagellum

26
Q

Types of pili

A

somatic=>binds human cells

conjugal=>gene transfer

27
Q

endopspores

A 
gram +
clostridium and bacillus
calcium dipicolinate=>heat
SASPs=>UV and dessication
keratin=>chemical

Micro Exam 1 (6 decks)

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