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MOD > Infectious Diseases - Bacteria Overview > Flashcards

Infectious Diseases - Bacteria Overview Flashcards

1
Q

What type of organisms are bacteria?

A

Prokaryotes - no nucleus or organelles

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2
Q

How do bacteria reproduce?

A

Through binary fission

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3
Q

Bacteria contain ____

A

Plasmids

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4
Q

What do plasmids do?

A

Confer antibiotic resistance and other traits

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5
Q

What are the 4 steps for Gram staining?

A
  1. Crystal violet dye
  2. Iodine traps dye
  3. Alcohol decolorizes
  4. Safranin (counterstrain)
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6
Q

Gram (+) bacteria stains?

A

PURPLE

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7
Q

Purple bacteria indicates?

A

Gram (+)

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8
Q

Gram (-) bacteria stains?

A

RED

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9
Q

Red bacteria indicates?

A

Gram (-)

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10
Q

Gram (+) bacteria has a ____ peptidoglycan wall

A

Thick

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11
Q

Gram (-) bacteria has a ____ peptidoglycan wall

A

Thin

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12
Q

What causes Gram (-) bacteria to lose the crystal violet dye?

A

Lipid A endotoxin and lipopolysaccharides on surface

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13
Q

What are the gram stain exceptions?

A

Gram variable bacteria

Acid Fast Bacilli

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14
Q

Cocci

A

Spherical shaped

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15
Q

Dipolococci

A

2 spheres

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16
Q

Streptococci

A

Chain of spheres

17
Q

Staphylococci

A

Cluster of spheres

18
Q

Bacilli

A

Rod shaped

19
Q

Diplobacili

20
Q

Streptobacilli

A

Chain of rods

21
Q

Bacilli can contain?

22
Q

Bacilli can also be what shaped?

A

Club shaped rods

23
Q

Spirochete

A

Helical shaped

24
Q

Spirilla

25
Q

Vibrio

A

Comma shaped

26
Q

Filamentous

A

Thread-like

27
Q

Pleomorphic

A

No particular shape

28
Q

Coccobacillus

A

Ovoid shape

29
Q

Attributes of a Gram Stain test?

A

Cheap

Rapidly detects presence and general type of bacteria

30
Q

Attributes of a Culture test?

A

SLOW

Aerobic and Anaerobic cultures

31
Q

Attributes of a Molecular Technique?

A

Expensive

Sensitive and Specific test!

32
Q

Attributes of Serology?

A

Detects antibody positivity for organisms that do not culture well

33
Q

What are the 4 steps to Gram Staining?

A
  1. Crystal Violet Dye
  2. Iodine traps dye
  3. Alcohol decolorizes
  4. Safranin (counterstrain)

MOD (68 decks)

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