BACTOLAB 8-11 Flashcards
(158 cards)
1
Q
Köster-positive bacteria are red.
A
True
2
Q
We use 5% sulphuric acid for Köster-staining.
A
False, (we use 0.5% H2SO4)
3
Q
Brucella melitensis is an obligate aerobic bacterium.
A
True
4
Q
Cattle can be infected by Brucella ovis.
A
False, (sheep)
5
Q
Brucella abortus is flagellated bacteria.
A
False, (no flagella)
6
Q
Pseudomonas aeruginosa produces two types of pigments.
A
True, pyocyanin and fluorescein
7
Q
Burkholderia mallei can infect swine.
A
False, (burkholderia pseudomallei)
8
Q
Francisella subspecies can be found in rodents and in arthropods.
A
True
9
Q
Bordetella bronchiseptica can cause pneumonia in rabbits.
A
True
10
Q
Brucella abortus is a facultative pathogenic bacterium.
A
False, (facultative intracellular bacterium)
11
Q
We use 3% safranin for Köster-staining.
A
True
12
Q
As a result of Köster-staining Brucella abortus is red.
A
True
13
Q
Brucella suis is an obligate anaerobic bacterium.
A
False, (obligate aerobic bacterium)
14
Q
Brucella suis biotype 2 can infect the European brown hare.
A
True, and wild boar
15
Q
Glanders (malleus) is caused by Burkholderia pseudomallei.
A
False, (by Burkholderia mallei)
16
Q
Pseudomonas aeruginosa is a flagellated bacterium species.
A
True, 1 polar flagellum
17
Q
Burkholder pseudomallei can infect humans.
A
True
18
Q
Francisella tularensis needs cysteine or cystine for culturing.
A
True
19
Q
Aeromonas spp. is obligate aerobic bacteria.
A
False, (aerobic and facultative anaerobic)
20
Q
Brucella species can be found in the infected animals and their direct environment only.
A
True
21
Q
Brucella suis has 5 biotypes.
A
TRUE
22
Q
- Brucella abortus is a Köster-positive bacterium species.
A
True
23
Q
- B. melitensis, B. abortus and B. canis have a strong relationship in antigenic structure, so they show cross reactions.
A
False, (B. melitensis - B. abortus - B. suis, cross reaction and B. ovis - B. canis, cross reaction)
24
Q
- Pseudomonas aeruginosa can cause septicaemia in fur animals.
A
True
25
26. Pseudomonas species are obligate aerobic bacteria.
True
26
27. Humans are susceptible to Burkholderia mallei.
True
27
28. Optimal temperature for culture of Aeromonas hydrophila is above 28°C.
False, (optimal temperature is 28°C)
28
29. Francisella tularensis is the causative agent of tularaemia.
True
29
30. Moraxella ovis – we can see cocci in pairs in the smear.
True
30
31. Brucella species are obligate pathogenic bacteria.
True
31
32. B. suis is a Köster-negative species.
False
32
33. During Köster-staining 3% safranin is used as a counter staining.
True
33
34. B. ovis is a zoonotic agent.
False
34
35. B. mallei is a widespread bacterium in our environment.
False, B. (pseudomallei is widespread
35
36. B. pseudomallei is a flagellated bacterium.
True
36
37. A. salmonicida can cause furunculosis in fish.
True
37
38. Cystine or cysteine is needed as an additive for culturing of F. tularensis
True
38
39. Moraxella ovis can cause pneumonia in calves and sheep.
TRUE
39
40. Brucella sp. is able to multiple in the environment.
False
40
41. Brucella spp. is obligate anaerobic bacteria.
False, obligate aerobic
41
42. Pseudomonas aeruginosa causes otitis externa in rabbits.
False, (in dogs, and sometimes cats)
42
43. B. pseudomallei is not a flagellated bacterium.
False, (have flagella)
43
Morphology of vibrio species are curved rods, with flagella.
True
44
Campylobacter jejuni can cause diarrhoea in humans.
True
45
Lawsonia intracellularis can be cultured on enterocyte cell culture.
True
46
Helicobacter pylori can cause chronic gastritis and ulcer in humans.
True
47
Spirochaetes have characteristic morphology, thin helical filaments.
True
48
Campylobacter species can tolerate 4-6% oxygen.
True, (6%)
49
Borrelia burgdorferi can cause Lyme-disease in humans.
True
50
Brachyspira hyodysenteriae is an obligate aerobic bacterium.
False
51
Human syphilis is caused by Treponema pallidum.
True
52
Maintenance host of Leptospira sejroe is cattle.
False, (mouse)
53
Vibrio species can be cultured in an alkaline environment (pH 8.6).
True
54
Human cholera is caused by Vibrio parahaemolyticus.
False, (vibrio cholera)
55
Campylobacter species are aerobic, facultative anaerobic bacteria.
False, (microaerophilic)
56
Campylobacter fetus spp. venerealis can cause abortion in sheep.
False, (cause cattle abortion/infertility)
57
Swine proliferative enteropathies are caused by Lawsonia intracellularis.
True
58
Helicobacter species are urease-negative bacteria.
False, (urease positive)
59
Spirochaetes are non-motile bacteria.
False, (periplasmic flagella)
60
Borrelia species can be cultured on chocolate agar.
False, (giemsa, fuchin and unstained)
61
Maintenance host of Leptospira icterohaemorrhagiae is rats.
True
62
Leptospira hardjo can cause abortion in cattles.
True, (also in sheep)
63
Causative agent of swine dysentery has 9 serogroups.
True
64
22. B. anserina causes rabbit syphilis.
False, (by T. paralysis cuniculi)
65
23. Leptospira species causes leptospirosis in cattle.
True, (in calves)
66
24. Helicobacter can cause gastritis.
True
67
25. Treponema pallidum is a zoonotic agent.
True
68
26. Helicobacter species are bacteria.
True
69
27. Lyme-disease is caused by Brachyspira.
False, (by Borrelia burgoferi, B. afzelii, B. garinii)
70
28. Brachyspira are obligate anaerobic bacteria.
TRUE
71
29. The causative agent of swine dysentery can show haemolysis on blood agar.
True
72
30. Leptospirosis of dogs is mainly caused by L. grippotyphosa.
False, (leptospirosis interrogans serovar canicola)
73
31. Levaditi ́s silver impregnation is an appropriate staining method for Leptospira species.
True
74
32. Vibrio species are microaerophilic bacteria.
False, (facultative anaerobic)
75
33. For the selective culture of Campylobacter species obligate vancomycin-polymyxin-trimethoprim is used.
True
76
Infectious form of Chlamydia species is elementary in the body.
True
77
NAD is needed for culturing Chlamydia species.
False
78
As a result of Stamp-staining chlamydia is green.
False
79
Chlamydia psittaci can cause conjunctivitis in birds.
True
80
Rickettsia species can propagate in lymphoid and endothelial cells only.
False, (Rickettsia, Coxiella: propagate in all cell types) and (Ehrlichia, Neorickettsia: lymphoid cells, endothelial cells)
81
Q-fever is caused by Coxiella burnetti.
True
82
Mycoplasmas have a pleomorphic shape.
True, pleomorphic pear shaped
83
Mycoplasmas are obligate anaerobic bacteria.
False, (facultative anaerobic)
84
Contagious bovine pleuropneumonia is caused by Mycoplasma bovis.
False, (by M. mycoides ssp. mycoides SC
85
Mycoplasma gallisepticum can cause chronic respiratory disease in birds.
True
86
Fuchsin is used as counter staining in the Stamp-staining.
False, (3% diluted malachite-green)
87
The resistance of the reticulated body is higher than the resistance of the elementary body.
False
88
Trachoma is caused by Chlamydia psittaci in humans.
False, (by chlamydia trachomatis)
89
Infectious form of Chlamydia species is elementary in the body.
True
90
NAD is needed for culturing Chlamydia species.
False
91
As a result of Stamp-staining chlamydia is green.
False
92
Chlamydia psittaci can cause conjunctivitis in birds.
True
93
Rickettsia species can propagate in lymphoid and endothelial cells only.
False, (Rickettsia, Coxiella: propagate in all cell types) and (Ehrlichia, Neorickettsia: lymphoid cells, endothelial cells)
94
Q-fever is caused by Coxiella burnetti.
True
95
Mycoplasmas have a pleomorphic shape.
True, pleomorphic pear shaped
96
Mycoplasmas are obligate anaerobic bacteria.
False, (facultative anaerobic)
97
Contagious bovine pleuropneumonia is caused by Mycoplasma bovis.
False, (by M. mycoides ssp. mycoides SC
98
Mycoplasma gallisepticum can cause chronic respiratory disease in birds.
True
99
Fuchsin is used as counter staining in the Stamp-staining.
False, (3% diluted malachite-green)
100
The resistance of the reticulated body is higher than the resistance of the elementary body.
False
101
Trachoma is caused by Chlamydia psittaci in humans.
False, (by chlamydia trachomatis)
102
All members of the family Rickettsia are obligate cellular parasites.
True
103
The causative agent of Q-fever needs arthropod vectors, because it cannot survive in the environment for a long time.
False, no vectors are needed
104
16. Cat scratch disease is caused by Rickettsia rickettsii.
False, (by B. henselae)
105
17. Mycoplasmas have typical colony forms, like fried eggs.
True
106
18. Contagious bovine pleuropneumonia is caused by M. mycoides ssp. Mycoides LC.
False, (M. mycoides ssp. mycoides SC)
107
19. Enzootic pneumonia of swine is caused by Mycoplasma hyopneumoniae.
True
108
20. Mycoplasmas are the smallest free-living microorganisms.
True
109
21. Chlamydia pneumoniae has a cell wall.
True
110
22. Chlamydia can be found in the infected host body only.
True
111
23. Chlamydia psittaci causes ornithosis.
True
112
24. Mycoplasma haemofelis can cause cat haemobartonellosis.
True
113
25. Heartwater disease of ruminants is caused by Ehrlichia ruminantium.
True
114
26. Cat scratch disease is caused by Anaplasma sp.
False, (by B. henselae)
115
27. Mycoplasma sp. can cause turbidity in liquid medium.
False, (no turbidity)
116
Mycoplasma bovis form fried egg shaped colonies on solid media.
True
117
Contagious bovine pleuropneumonia is caused by M. mycoides spp. mycoides SC.
True
118
Sabouraud agar is used for culturing fungi.
TRUE
119
Fungi are able to do photosynthesis.
False, (no photosynthesis)
120
Mycotoxicosis is caused by fungal toxins.
True
121
Malassezia pachydermatis has characteristics morphology, bottle-shape cells.
TRUE
122
Cryptococcus neoformans form mucoid colonies on Sabouraud agar.
True
123
Dermatophytes cause superficial mycosis.
False
124
F2 toxin can cause reduced fertility in cattle.
True
125
Equine epizootic lymphangitis is caused by Histoplasma farciminosum.
True
126
Dimorphic fungi have yeast form in the host body.
True
127
Stachybotrys Toxins can cause immunosuppression in horses.
True
128
11. The pH of Sabouraud agar is higher than 6.5.
False, (pH of 5.5)
129
12. Yeasts can be cultured at 37 degrees.
True
130
Resistance of asexual spores is higher than sexual spores.
False, (sexual spores has higher resistance)
131
14. Malassezia pachydermatis can cause external otitis in dogs.
True
132
15. Microsporum sp. is a member of Dermatophytes.
True
133
16. Candida albicans can be found on mucous membranes of infected animals only.
False, (can be found in the intestinal tracts and in the oral cavities of healthy individuals also)
134
17. Cryptococcus neoformans cannot form colonies on artificial mediums.
True
135
18. Trichophyton verrucosum causes ringworm in cattle.
True
136
19. Aflatoxin is produced by Aspergillus fumigatus.
False, (by A. flavus)
137
20. Penicillin is produced by Penicillium rubrum.
False, (P. notatum, P. chrysogenum)
138
21. Fungi have five phyla.
True
139
22. Funguses are based on the 18S and the 26S ribosomal RNA gene.
True
140
23. Glomeromycota phyla of fungi symbioses with plant roots.
True
141
24. Dermatophytes are obligate anaerobic.
False, (obligate aerobic)
25. Ochratoxin is produced by A. ochraceus.
True
26. Fumonisins can cause pulmonary oedema in horses.
False, (in pigs)
False, (obligate aerobic)
142
25. Ochratoxin is produced by A. ochraceus.
True
143
26. Fumonisins can cause pulmonary oedema in horses.
False, (in pigs)
144
ochraceus causes kidney degeneration in cattle.
False, (in poultry and pigs)
145
28. Patulin causes inhibition of ruminal flora.
True
146
29. Fusarium has pigment production.
True
147
30. T2 toxin can cause immunosuppression in cattle.
True, (also poultry and pigs)
148
31. F. moniliforme can cause leukoencephalomalacia in horses.
True
149
32. Stachybotrys atra forms black colonies.
TRUE
150
33. Dimorphic fungi have mould form on media only.
False, (mould and environment)
151
34. B. dermatitis can cause blastomycosis (granulomatosis).
True
152
35. S. schenckii causes subcutaneous granulomatosis in humans.
True, (also dog, cat and horse)
153
36. Coccidioides immitis causes systemic mycosis in humans.
True, (also dog, horse and cat)
154
37. Batrachochytrium dendrobatidis can cause chytridiomycosis of amphibians.
True
155
38. Dermatophytes can be cultured at 37 degrees.
False, (25 degrees)
156
39. Yeasts incubation condition time is 1-4 days.
True
157
40. Dermatophytes incubation condition time is 2-4 weeks.
True
158
