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[1L] IDENTIFICATION TESTS > Neisseria species and Moraxella catarrhalis > Flashcards

Neisseria species and Moraxella catarrhalis Flashcards

1
Q
  1. Cytochrome oxidase test

Positive result

A

Colonies develop purple color within 10 seconds

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2
Q
  1. Cytochrome oxidase test

Negative result

A

No color change

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3
Q
  1. Cytochrome oxidase test

Positive control

A

Neisseria species, Pseudomonas aeruginosa

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4
Q
  1. Cytochrome oxidase test

Negative control

A

Escherichia coli

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5
Q
  1. Carbohydrate utilization test

Positive result

A

Yellow color in the upper part or throughout the medium

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6
Q
  1. Carbohydrate utilization test

Negative result

A

Red to orange color

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7
Q 
Small,	grayish-white,	convex,	
translucent,	glistening	
colonies	with	either	smooth	
or	irregular	margins;	maybe	
upto5different	colony	types
A

N. gonorrhoeae

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8
Q

Medium, blue-gray, smooth,
glistening, encapsulated
strains are mucoid

A

N. meningitis

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9
Q

Small, nonpigmented or
yellowish, smooth,
transparent

A

N. lactamica

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10
Q

Grayish-white, slightly

granular

A

N. cinerea

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11
Q

Medium, yellow, opaque,

smooth

A

N. flavescens

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12
Q

Large, nonpigmented,
wrinkled, coarse, dry,
adherent, cannot be
emulsified readily

A

N. sicca

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13
Q

Medium, greenish-yellow to
yellow, smooth, enTre edge,
Adherent

A

N. subflava

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14
Q

SomeTmes yellowish,

Mucoid appearance

A

N. mucosa

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15
Q

Small, grayish-white to light

yellow, translucent, raised

A

N. polysaccharea

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16
Q

Gray-white, slight yellow
Tnge, flat, glistening, dry
claylike consistency

A

N. elongata

17
Q 
Large,	nonpigmented	or	gray,	
opaque,	smooth;	friable	
“honey	puck”	consistency;	
colony	may	be	removed	
intact	over	surface	of	agar
A

M. catarrhalis

18
Q

N. gonorrhoeae

+

A

MTM

Glucose

19
Q

N. meningitis

+

A

MTM
Glucose
Maltose

20
Q

N. lactamica

+

A

MTM
Glucose
Maltose
Lactose

21
Q

N. cinerea

V

A

MTM

22
Q

N. flavescens

+

A

Polysaccharide from Sucrose

23
Q

N. sicca

+

A 
Glucose
Maltose
Sucrose
Frucrose
Polysaccharide	from	Sucrose
24
Q

N. subflava

+
V

A

Glucose
Maltose

Sucrose
Frucrose

25
Q

N. mucosa

+

A 
Glucose
Maltose
Sucrose
Frucrose
Polysaccharide	from	Sucrose
NO3	reduction
26
Q

N. polysaccharea

+

A

Glucose
Maltose
Polysaccharide from Sucrose

27
Q

N. polysaccharea

V

A

Sucrose

28
Q

M. catarrhalis

+

A

DNAse

NO3 reducTon

29
Q

N. elongata

+

A

None

[1L] IDENTIFICATION TESTS (8 decks)

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