CULTURAL CHARACTERISTICS

Question 1

major features of bacteria

Answer 1

APPEARANCE

Question 2

very important in bacterial identification

Answer 2

factors of bacterial colony

Question 3

4 COLONY SIZE (MEASURED IN MILLIMETERS)

Answer 3

Pinpoint
Small
Medium
Large

Question 4

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

Answer 4

COLONY PIGMENTATION

Question 5

bacteria that give a green metallic sheen on
EMB agar

Answer 5

Escherichia coli

Question 6

Forms (Colony shape)

Answer 6

Punctiform
Circular
Filamentous
Irregular
Rhizoid
Curled

Question 7

Elevation (Colony elevation)

Answer 7

Crateriform
Raised
Flat
Umbonate
Convex

Question 8

Margin of Colony

Answer 8

Entire (smooth)
Irregular
Filamentous

Question 9

Glistening and yellow

Answer 9

Circular

Question 10

glistening, and white

Answer 10

Irregular

Question 11

veined, and rough, yellow

Answer 11

Rhizoid

Question 12

rough, and white

Answer 12

Filamentous

Question 13

COLONY SURFACE APPEARANCE

Answer 13

Glistening
Smooth
Dull
Wrinkle
Rough

Question 14

observed in Blood Agar

Answer 14

Hemolytic Pattern

Question 15

colony sinks in the agar

Answer 15

Pitting of the agar surface

Question 16

grape like odor

Answer 16

Pseudomonas aeruginosa

Question 17

Color

Answer 17

White
Yellow
Black
Buff
Cream

Question 18

Density

Answer 18

Opaque
Translucent
Transparent

Question 19

CONSISTENCY

Answer 19

Butyrous
Viscid
Membranous
Brittle

Question 20

required to measure the size of the agar colonies

Answer 20

SIZE

Question 21

Punctiform size agar plate colonies

Answer 21

< 1 mm

Question 22

Small size in agar plate colonies

Answer 22

1-2 mm

Question 23

Medium size in agar plate colonies

Answer 23

3-4 mm

Question 24

Large size in agar plate colonies

Answer 24

> 5 mm

Question 25

spread across the entire agar plate

Answer 25

Pseudomonas and Proteus

Question 26

evenly circular or with irregularities

Answer 26

MARGIN OR EDGE

Question 27

Colonies may either be flat or raised

Answer 27

ELEVATIONS

Question 28

Not all bacterial species have this distinctive feature

Answer 28

CHROMOGENESIS

Question 29

May be diffusible to non-diffusible

Answer 29

CHROMOGENESIS

Question 30

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

Answer 30

CHROMOGENESIS

Question 31

May be opaque, translucent or opalescent

Answer 31

OPTICAL FEATURES

Question 32

put on tube not on the petri dish

Answer 32

GROWTH ON AGAR SLANT

Question 33

Amount (2)

Answer 33

Scanty
Moderate or Abundant

Question 34

MARGIN OR EDGE (4)

Answer 34

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

Question 35

CONSISTENCY OF MASS GROWTH (3)

Answer 35

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

Question 36

Talks about the turbidity of the nutrient broth

Answer 36

DISTRIBUTION IN BROTH