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BACTERIOLOGY PRELIMS > CULTURAL CHARACTERISTICS > Flashcards

CULTURAL CHARACTERISTICS Flashcards

1
Q

major features of bacteria

A

APPEARANCE

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2
Q

very important in bacterial identification

A

factors of bacterial colony

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3
Q

4 COLONY SIZE (MEASURED IN MILLIMETERS)

A

Pinpoint
Small
Medium
Large

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4
Q

refers to the coloration observed in bacterial or fungal colonies grown in agar plates

A

COLONY PIGMENTATION

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5
Q

bacteria that give a green metallic sheen on
EMB agar

A

Escherichia coli

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6
Q

Forms (Colony shape)

A

Punctiform
Circular
Filamentous
Irregular
Rhizoid
Curled

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7
Q

Elevation (Colony elevation)

A

Crateriform
Raised
Flat
Umbonate
Convex

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8
Q

Margin of Colony

A

Entire (smooth)
Irregular
Filamentous

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9
Q

Glistening and yellow

A

Circular

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10
Q

glistening, and white

A

Irregular

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11
Q

veined, and rough, yellow

A

Rhizoid

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12
Q

rough, and white

A

Filamentous

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13
Q

COLONY SURFACE APPEARANCE

A

Glistening
Smooth
Dull
Wrinkle
Rough

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14
Q

observed in Blood Agar

A

Hemolytic Pattern

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15
Q

colony sinks in the agar

A

Pitting of the agar surface

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16
Q

grape like odor

A

Pseudomonas aeruginosa

17
Q

Color

A

White
Yellow
Black
Buff
Cream

18
Q

Density

A

Opaque
Translucent
Transparent

19
Q

CONSISTENCY

A

Butyrous
Viscid
Membranous
Brittle

20
Q

required to measure the size of the agar colonies

A

SIZE

21
Q

Punctiform size agar plate colonies

A

< 1 mm

22
Q

Small size in agar plate colonies

A

1-2 mm

23
Q

Medium size in agar plate colonies

A

3-4 mm

24
Q

Large size in agar plate colonies

A

> 5 mm

25
Q

spread across the entire agar plate

A

Pseudomonas and Proteus

26
Q

evenly circular or with irregularities

A

MARGIN OR EDGE

27
Q

Colonies may either be flat or raised

A

ELEVATIONS

28
Q

Not all bacterial species have this distinctive feature

A

CHROMOGENESIS

29
Q

May be diffusible to non-diffusible

A

CHROMOGENESIS

30
Q

Some bacteria retained the pigment within the cell while other bacteria colored the medium

A

CHROMOGENESIS

31
Q

May be opaque, translucent or opalescent

A

OPTICAL FEATURES

32
Q

put on tube not on the petri dish

A

GROWTH ON AGAR SLANT

33
Q

Amount (2)

A

Scanty
Moderate or Abundant

34
Q

MARGIN OR EDGE (4)

A
  • evenly circular or with irregularities
  • Rounded projections
  • Irregular notches
  • Threadlike or root-like projections
35
Q

CONSISTENCY OF MASS GROWTH (3)

A
  • butyrous or butter-like,
  • viscous or stringy
  • dry and brittle
36
Q

Talks about the turbidity of the nutrient broth

A

DISTRIBUTION IN BROTH

37
Q
A

BACTERIOLOGY PRELIMS (3 decks)

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