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Foundations Test 5 > Bacterial Structure > Flashcards

Bacterial Structure Flashcards

1
Q

Gram + Cocci

A

Staphylococcus
Streptococcus
S. Aureus

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2
Q

Gram + Rods (Bacilli)

A 
Clostridium
Listeria
Bacillus
S. pneumonaie
S. pyogenes
S. agalactidae
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3
Q

Gram - Cocci

A

Neisseria meningitidis
N. gonorrhoeae
N. meningitidis
N. gonorrhoeae

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4
Q

Gram - Coccoid rods

A

Haemophilus influenzae

Bordetella pertussis

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5
Q

Gram - Rods

A 
Klebsiella
E. coli
Shigella
Salmonella
Proteus
Pseudomonas
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6
Q

Capsule is composed of what?

Why is it useful?

A

Polysaccharide

People are more susceptible to invasion and infection with encapsulated organisms

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7
Q

Spirochetes

A

helical shape, corkscrew motility

Ie: Treponema and barrelia

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8
Q

Chlamydia, Rickettsia

A

Obligate intracellular pathogens

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9
Q

Mycoplasma

A

No cell wall, can’t gram stain

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10
Q

Mycobacteria

A

Mycolic acid and lipoarabinomannan

Unique cell wall, must use ACID FAST stain

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11
Q

ACID FAST

A

used on waxy mycobacteria, done at high temperatures, show red and blue

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12
Q

Lag phase

A

produce proteins and prepare to accumulate

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13
Q

exponential growth phase

A

actively divide

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14
Q

stationary phase

A

bacteria use up nutrients as fast as they are made/acquired

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15
Q

death phase

A

too many bacteria for the environment, cant be sustained

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16
Q

selective media

A

inhibits growth of certain bacteria but allows growth of others

17
Q

differential

A

doesnt inhibit growth, but has indicator to differentiate between bacteria

18
Q

Blood agar test

A

Alpha- partial lysing via hemolysin, turns agar green
Beta- complete lysing of RBC via hemolysin
Gamma- no hemolysis

19
Q

Bacillus arrangement

A

Rods

20
Q

Streptococci arrangement

A

chains

21
Q

Staphylococci arrangement

A

great white clusters

22
Q

spirochete arrangement

A

corkscrew

23
Q

how do pathogens enter

A

Aerosol, cuts in the skin, conjunctiva, mucous membranes etc

24
Q

Gram stain colors

A

Gram - stains red

Gram + stains purple

Foundations Test 5 (1 decks)

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