Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Microbiology > Gram Postive Bacilli > Flashcards

Gram Postive Bacilli Flashcards

(95 cards)

Start Studying
0
Q

Classification of bacillus based on the location and shape of the spore: Ellipsoidal and does not cause swelling.

A

Group 1.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q 
General Characteristics: 
Sporeformer (central spore)
Strictly aerobic/Facultative Anaerobe
Catalase positive
M except B.anthracis; Thermophilic
A

Bacillus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Classification of bacillus based on the location and shape of the spore:has large cell more than 0.9 um.

A

Subgroup 1: B.anthracis, B.cerues, B.megaterium, B.thuringiensis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Classification of bacillus based on the location and shape of the spore: has small cell less than 0.9 um.

A

Subgroup 2: B.subtilis, B.coagulans, B.pumilus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Classification of bacillus based on the location and shape of the spores: oval shaped and are swollen.

A

Group 2: B.stearothermophilus, B.polymxa, B.circulans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Classification of bacillus based on the location and shape of the spore: circular shape and are swollen. Most fastidious and has complex nutrition.

A

Group 3: B.sphaericus, B.panthothenicus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

On 5% sheep’s blood agar, B.cereus are:

A

Alpha or beta hemolytic with lavander color.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Other Bacillus sp. appear as:

A

Large, flat and dull with a ground glass appearance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Bacillus infection: involves the eye (Keratitis, conjunctivitis, orbital abscess)

A

Local Infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Bacillus infection: infection with other organisms (wound, burnt)

A

Mixed infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Bacillus infection: organism cultured from blood and CSF (meninggitis, bacteremia)

A

Disseminated infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Common name of Bacillus anthracis

A

Anthrax Bacillus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Most virulent human pathogen in this genus. Large, NM, encapsulated, gm. (+) with square ends forming long chains. With oval, central or sub terminal spore not swollen. Disjointed bamboo fishing rod appearance.

A

Bacillus anthracis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Cultural characteristics of B.anthracis on BAP:

A

Non-hemolytic; with comma shaped growths described as Medusa head colony or lion head or cut-glass appearance or comet tail.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Cultural characteristics of B.anthracis on med. containing small amount of penicillin:

A

Organism can still grow but will produce similar string of pearl.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Cultural characteristics of B.anthracis on gelatin medium:

A

Inverted Fir Tree or Inverted Chrismtas Tree; produce acid from glucose, maltose and sucrose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Diseases of Bacillus anthracis:

A

Anthrax, Silberian Fever, Black Bair

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Cutaneous anthrax or malignant pustule; skin contract

A

External

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Internal: transmitted by inhalation of spore while handling wool; woolsorter’s disease or ragpicker’s disease.

A

Pulmonary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Internal: ingestion of improperly cooked infected meat.

A

Intestinal anthracis or violent enteritis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Laboratory DX of Bacillus anthracis: stained smears:

A

Macfadyeau’s method

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Laboratory DX of Bacillus anthracis: culture m;

A

PLET Medium ( Polymixin, Lysozyme, Disodium EDTA, Thallou acetate)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Laboratory DX of Bacillus anthracis: the extracts if infected tissue show a ring of ppt when layered over immuned serum. Diagnosis precipitin test for B.anthracis.

A

Ascoli Test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Common name of Bacillus cereus.

A

Fried rice bacillus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
2nd most virulent human pathogen. They are called anthrax-like or pseudoanthrax bacilli; NE, M, beta-hemolytic. Most resistant species.
Bacillus cereus
25
Appear as rough, dry and cremated with distinct bright blue color.
PEEMBA Medium (Polymixin pyruvate-egg-yolk-mannitol-brom Thymol blue agar)
26
Differentiation test between B.anthracis and other Bacillus sp.
Lectin Agglutination Assays
27
Specimen used in B.cereus:
Blood, swab with pus, sputum, feces
28
Bacillus subtilis is also know as
Hay bacillus or grass bacillus
29
Gm +, catalase positive, bacterium commonly found in soil, obligate aerobe, rod shaped and has the ability to form a tough, protective endospore, allowing the organism to tolerate extreme environmental conditions. Common lab contaminant.
Bacillus subtilis
30
An intesticide
Bacillus thurgiensis
31
Strictly anaerobe/some are aerotolerant; catalase negative.
Clostridium
32
All are motile (Peri) except:
C. Perfringens, C.ramosum, C.inocuum
33
All have swollen spores except:
C.perfringens, C.bifermentans
34
All are non-encapsulated except:
C.perfringens
35
All are lactose + except:
C.perfringens and C.septicum
36
All are sucrose + except:
C.perfringens
37
All are single hemolytic except:
C.perfringens (double hemolysis)
38
All are dextrose + except;
C.histolyticum; C.tetani
39
Biochem test for clostridium; Lecithinase C Activity +:
C.perfringens, C.noyvi, C.sordeli
40
Biochem test for clostridium: Lipass hyrdolysis +:
C.noyvi, C.botulinum
41
Biochem test for clostridium: Lactose fermentation +:
C.perfringens;C.septicum
42
Biochem test for clostridium: proteinase activity +:
C.sordeli, C.botulinum, C. Histolyticum
43
Common name of clostridium perfringens.
Frankel's bacillus
44
Small gm + plum rods;NM, with oval or sub terminal spores. Lecithinase/Nagler Reaction +; Reverse CAMP ; Ferments glucose, maltose, sucrose and fructose.
Clostridium perfringens
45
Cultural characteristics: | Exhibits Nagler's production.
Lecithvottelin Reaction. | +: result of zone of halo opacity around colonies in the side
46
Cultural characteristics of C.perfringens: on BAP
Double zone of hemolysis or target hemolysis
47
Cultural characteristics of C.perfringens:
Causes stormy fermentation of milk due to excessive production of gas.
48
Makes use of starch and raffinose.
Duncan and strong medium
49
Best sporulating medium
Tortora medium
50
Types of infection:
Necrotic enteritis or fire in the bowel Food poisoning Gas gangrene
51
Diagnosis of C.perfringens.
Swab from lesion and culture Microscopic exam Culture of pus
52
Causative agent of tetanus. M with round and terminal spore giving rise to drumstick, lollipop and tennis racket. Gelatinase and INDOLE +; Lecithinase and lipase -. Produced tetanolysin and tetanospamin.
Clostridium tetani
53
Classic symptom is Trismus or lockjaw
Tetanus
54
Peculiar smile of tetanus
Rises Sandonicus
55
Ganglia site binds of the tetanospamin
Wasserman takaki phenomenon
56
C.tetani on BAP:
Initially alpha then beta hemolytic
57
Pathogenesis of C.tetani
Fever, pain, lockjaw, sardonic smile, spasm
58
Diagnosis of C.tetani
Culture | Secretion of lesion- BAP, Thyoglycolate
59
Prevention of C.tetani
Active immune with toxoid
60
Common name of clostridium botulinum
Canned good bacilli or Von Ermengen's bacilli
61
Motile, pleomorphic with oval and subterminal spore. Causative agent of botulism. Canned goods. Lipase +; Lecithinase and INDOLE -; ferments glucose but not lactose or Xylose
Clostridium botulinum
62
C.botulinum on BAP
Alpha hemolytic
63
Culture of C.botulinum
Chopped meat or BA medium
64
7 toxigenic type: bass on antigentically distinct toxin
Type A B C D E F G
65
Human botulism
Type ABEF
66
Birds and other mammals
Type CD
67
Pathogenesis of C.botulinum
Food intoxication/Food poisoning/Food infection
68
Common name for Cornyebacterium.
Klebloeffler's bacillus
69
NM, NS, NE Aerobic of facultative anaerobe, catalas +.Straight or slightly curved with one end typically swollen. Pleomorphic, globular, bar shaped, club shaped, Gram +, AFD. Pathogens only to human; stains irregularly and contains deeply stained. Metachromatic granules "Babes-Ernst granules". Chinese letter or character appearance or picket fence appearance.
Cornyebacterium diphtheriae
70
Cornyebacterium diphtheriae on BAP.
Organism with a tendency to lie parallel to each other at right angles forming V and L shape produces narrow zone of hemolysis.
71
Potassium tellurite on Cornyebacterium diphtheriae
Grayish colonies
72
C.diphtheriae form brown halo
Tinsdale medium
73
Stimulates growth and distinctive morphologyon C.diphtheriae
Egg and Serum Medium
74
Enhanced pleomorphism- white or gray poached egg on C.diphtheriae
Loaffler's serum slant
75
Inhibits gm - and + bacteria while enhancing the growth of Cornyebacterium.
Cysteine Tellurite Blood Agar
76
Fine granules deposit at the bottom with clear supernate and a thin pellicle formation at the surface on C.diphtheriae
NB
77
Small, moist, smooth, slightly raised, grayish colonies with entire margin on C.diphtheriae
Loaffler's serum
78
Grayish black colonies on C.diphtheriae
Egg medium
79
Gun metal gray colonies with brown halo on C.diphtheriae
Cystine tellurite medium
80
Enhances Pleomorphism and granule formation on C.diphtheriae
Pai's Coagulated Egg Medium
81
Acute communicable disease manifested by: Local Infection Systematic effects Cutaneous diphtheria Endocarditis
Diphtheria
82
Diagnostic feature of Diphtheria and most pathogenic sign of Diphtheria.
Pseudo membrane formation
83
+: redness and swelling; susceptibility test for Diphtheria.
Schick's test
84
A gel diffusion test med of Diphtheria.
Protease Peptone Agar also known as outerlony tech.
85
Largest colony type, large and flag, dark gray and have irregular edges
Gravis
86
With fried egg appearance on BAP
Mitis
87
Small and black
Intermedius
88
Pathogenesis of Diphtheria.
Toxin is absorbed-destruction of cell-inflammatory response- formation of pseudo membrane - bleeding - edema
89
Specimens used in Diphtheria
Nose and throat swab
90
Positive result of vitro toxigenecity test
Lines of precipitation
91
Positive result of Vivo toxigenecity test
Death of unprotected guinea pig
92
Formerly know as C.ovis; associated with horses
C.pseudotuberculosis
93
Causative agent of erythrema
C.minutissimum
94
Mastitis in Cattles; respiratory pathogen in man and other higher animals; produces a diphtheria like toxin and diphtheria like infection in man.
Cornyebacterium ulcerans

Microbiology (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions