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Bacto practical > BACTOLAB 8-11 > Flashcards

BACTOLAB 8-11 Flashcards

1
Q

Köster-positive bacteria are red.

A

True

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2
Q

We use 5% sulphuric acid for Köster-staining.

A

False, (we use 0.5% H2SO4)

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3
Q

Brucella melitensis is an obligate aerobic bacterium.

A

True

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4
Q

Cattle can be infected by Brucella ovis.

A

False, (sheep)

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5
Q

Brucella abortus is flagellated bacteria.

A

False, (no flagella)

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6
Q

Pseudomonas aeruginosa produces two types of pigments.

A

True, pyocyanin and fluorescein

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7
Q

Burkholderia mallei can infect swine.

A

False, (burkholderia pseudomallei)

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8
Q

Francisella subspecies can be found in rodents and in arthropods.

A

True

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9
Q

Bordetella bronchiseptica can cause pneumonia in rabbits.

A

True

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10
Q

Brucella abortus is a facultative pathogenic bacterium.

A

False, (facultative intracellular bacterium)

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11
Q

We use 3% safranin for Köster-staining.

A

True

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12
Q

As a result of Köster-staining Brucella abortus is red.

A

True

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13
Q

Brucella suis is an obligate anaerobic bacterium.

A

False, (obligate aerobic bacterium)

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14
Q

Brucella suis biotype 2 can infect the European brown hare.

A

True, and wild boar

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15
Q

Glanders (malleus) is caused by Burkholderia pseudomallei.

A

False, (by Burkholderia mallei)

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16
Q

Pseudomonas aeruginosa is a flagellated bacterium species.

A

True, 1 polar flagellum

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17
Q

Burkholder pseudomallei can infect humans.

A

True

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18
Q

Francisella tularensis needs cysteine or cystine for culturing.

A

True

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19
Q

Aeromonas spp. is obligate aerobic bacteria.

A

False, (aerobic and facultative anaerobic)

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20
Q

Brucella species can be found in the infected animals and their direct environment only.

A

True

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21
Q

Brucella suis has 5 biotypes.

A

TRUE

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22
Q
  1. Brucella abortus is a Köster-positive bacterium species.
A

True

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23
Q
  1. 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)

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24
Q
  1. Pseudomonas aeruginosa can cause septicaemia in fur animals.
A

True

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25
Q
  1. Pseudomonas species are obligate aerobic bacteria.
A

True

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26
Q
  1. Humans are susceptible to Burkholderia mallei.
A

True

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27
Q
  1. Optimal temperature for culture of Aeromonas hydrophila is above 28°C.
A

False, (optimal temperature is 28°C)

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28
Q
  1. Francisella tularensis is the causative agent of tularaemia.
A

True

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29
Q
  1. Moraxella ovis – we can see cocci in pairs in the smear.
A

True

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30
Q
  1. Brucella species are obligate pathogenic bacteria.
A

True

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31
Q
  1. B. suis is a Köster-negative species.
A

False

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32
Q
  1. During Köster-staining 3% safranin is used as a counter staining.
A

True

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33
Q
  1. B. ovis is a zoonotic agent.
A

False

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34
Q
  1. B. mallei is a widespread bacterium in our environment.
A

False, B. (pseudomallei is widespread

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35
Q
  1. B. pseudomallei is a flagellated bacterium.
A

True

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36
Q
  1. A. salmonicida can cause furunculosis in fish.
A

True

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37
Q
  1. Cystine or cysteine is needed as an additive for culturing of F. tularensis
A

True

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38
Q
  1. Moraxella ovis can cause pneumonia in calves and sheep.
A

TRUE

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39
Q
  1. Brucella sp. is able to multiple in the environment.
A

False

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40
Q
  1. Brucella spp. is obligate anaerobic bacteria.
A

False, obligate aerobic

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41
Q
  1. Pseudomonas aeruginosa causes otitis externa in rabbits.
A

False, (in dogs, and sometimes cats)

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42
Q
  1. B. pseudomallei is not a flagellated bacterium.
A

False, (have flagella)

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43
Q

Morphology of vibrio species are curved rods, with flagella.

A

True

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44
Q

Campylobacter jejuni can cause diarrhoea in humans.

A

True

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45
Q

Lawsonia intracellularis can be cultured on enterocyte cell culture.

A

True

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46
Q

Helicobacter pylori can cause chronic gastritis and ulcer in humans.

A

True

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47
Q

Spirochaetes have characteristic morphology, thin helical filaments.

A

True

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48
Q

Campylobacter species can tolerate 4-6% oxygen.

A

True, (6%)

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49
Q

Borrelia burgdorferi can cause Lyme-disease in humans.

A

True

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50
Q

Brachyspira hyodysenteriae is an obligate aerobic bacterium.

A

False

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51
Q

Human syphilis is caused by Treponema pallidum.

A

True

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52
Q

Maintenance host of Leptospira sejroe is cattle.

A

False, (mouse)

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53
Q

Vibrio species can be cultured in an alkaline environment (pH 8.6).

A

True

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54
Q

Human cholera is caused by Vibrio parahaemolyticus.

A

False, (vibrio cholera)

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55
Q

Campylobacter species are aerobic, facultative anaerobic bacteria.

A

False, (microaerophilic)

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56
Q

Campylobacter fetus spp. venerealis can cause abortion in sheep.

A

False, (cause cattle abortion/infertility)

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57
Q

Swine proliferative enteropathies are caused by Lawsonia intracellularis.

A

True

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58
Q

Helicobacter species are urease-negative bacteria.

A

False, (urease positive)

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59
Q

Spirochaetes are non-motile bacteria.

A

False, (periplasmic flagella)

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60
Q

Borrelia species can be cultured on chocolate agar.

A

False, (giemsa, fuchin and unstained)

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61
Q

Maintenance host of Leptospira icterohaemorrhagiae is rats.

A

True

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62
Q

Leptospira hardjo can cause abortion in cattles.

A

True, (also in sheep)

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63
Q

Causative agent of swine dysentery has 9 serogroups.

A

True

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64
Q
  1. B. anserina causes rabbit syphilis.
A

False, (by T. paralysis cuniculi)

65
Q
  1. Leptospira species causes leptospirosis in cattle.
A

True, (in calves)

66
Q
  1. Helicobacter can cause gastritis.
A

True

67
Q
  1. Treponema pallidum is a zoonotic agent.
A

True

68
Q
  1. Helicobacter species are bacteria.
A

True

69
Q
  1. Lyme-disease is caused by Brachyspira.
A

False, (by Borrelia burgoferi, B. afzelii, B. garinii)

70
Q
  1. Brachyspira are obligate anaerobic bacteria.
A

TRUE

71
Q
  1. The causative agent of swine dysentery can show haemolysis on blood agar.
A

True

72
Q
  1. Leptospirosis of dogs is mainly caused by L. grippotyphosa.
A

False, (leptospirosis interrogans serovar canicola)

73
Q
  1. Levaditi ́s silver impregnation is an appropriate staining method for Leptospira species.
A

True

74
Q
  1. Vibrio species are microaerophilic bacteria.
A

False, (facultative anaerobic)

75
Q
  1. For the selective culture of Campylobacter species obligate vancomycin-polymyxin-trimethoprim is used.
A

True

76
Q

Infectious form of Chlamydia species is elementary in the body.

A

True

77
Q

NAD is needed for culturing Chlamydia species.

A

False

78
Q

As a result of Stamp-staining chlamydia is green.

A

False

79
Q

Chlamydia psittaci can cause conjunctivitis in birds.

A

True

80
Q

Rickettsia species can propagate in lymphoid and endothelial cells only.

A

False, (Rickettsia, Coxiella: propagate in all cell types) and (Ehrlichia, Neorickettsia: lymphoid cells, endothelial cells)

81
Q

Q-fever is caused by Coxiella burnetti.

A

True

82
Q

Mycoplasmas have a pleomorphic shape.

A

True, pleomorphic pear shaped

83
Q

Mycoplasmas are obligate anaerobic bacteria.

A

False, (facultative anaerobic)

84
Q

Contagious bovine pleuropneumonia is caused by Mycoplasma bovis.

A

False, (by M. mycoides ssp. mycoides SC

85
Q

Mycoplasma gallisepticum can cause chronic respiratory disease in birds.

A

True

86
Q

Fuchsin is used as counter staining in the Stamp-staining.

A

False, (3% diluted malachite-green)

87
Q

The resistance of the reticulated body is higher than the resistance of the elementary body.

A

False

88
Q

Trachoma is caused by Chlamydia psittaci in humans.

A

False, (by chlamydia trachomatis)

89
Q

Infectious form of Chlamydia species is elementary in the body.

A

True

90
Q

NAD is needed for culturing Chlamydia species.

A

False

91
Q

As a result of Stamp-staining chlamydia is green.

A

False

92
Q

Chlamydia psittaci can cause conjunctivitis in birds.

A

True

93
Q

Rickettsia species can propagate in lymphoid and endothelial cells only.

A

False, (Rickettsia, Coxiella: propagate in all cell types) and (Ehrlichia, Neorickettsia: lymphoid cells, endothelial cells)

94
Q

Q-fever is caused by Coxiella burnetti.

A

True

95
Q

Mycoplasmas have a pleomorphic shape.

A

True, pleomorphic pear shaped

96
Q

Mycoplasmas are obligate anaerobic bacteria.

A

False, (facultative anaerobic)

97
Q

Contagious bovine pleuropneumonia is caused by Mycoplasma bovis.

A

False, (by M. mycoides ssp. mycoides SC

98
Q

Mycoplasma gallisepticum can cause chronic respiratory disease in birds.

A

True

99
Q

Fuchsin is used as counter staining in the Stamp-staining.

A

False, (3% diluted malachite-green)

100
Q

The resistance of the reticulated body is higher than the resistance of the elementary body.

A

False

101
Q

Trachoma is caused by Chlamydia psittaci in humans.

A

False, (by chlamydia trachomatis)

102
Q

All members of the family Rickettsia are obligate cellular parasites.

A

True

103
Q

The causative agent of Q-fever needs arthropod vectors, because it cannot survive in the environment for a long time.

A

False, no vectors are needed

104
Q
  1. Cat scratch disease is caused by Rickettsia rickettsii.
A

False, (by B. henselae)

105
Q
  1. Mycoplasmas have typical colony forms, like fried eggs.
A

True

106
Q
  1. Contagious bovine pleuropneumonia is caused by M. mycoides ssp. Mycoides LC.
A

False, (M. mycoides ssp. mycoides SC)

107
Q
  1. Enzootic pneumonia of swine is caused by Mycoplasma hyopneumoniae.
A

True

108
Q
  1. Mycoplasmas are the smallest free-living microorganisms.
A

True

109
Q
  1. Chlamydia pneumoniae has a cell wall.
A

True

110
Q
  1. Chlamydia can be found in the infected host body only.
A

True

111
Q
  1. Chlamydia psittaci causes ornithosis.
A

True

112
Q
  1. Mycoplasma haemofelis can cause cat haemobartonellosis.
A

True

113
Q
  1. Heartwater disease of ruminants is caused by Ehrlichia ruminantium.
A

True

114
Q
  1. Cat scratch disease is caused by Anaplasma sp.
A

False, (by B. henselae)

115
Q
  1. Mycoplasma sp. can cause turbidity in liquid medium.
A

False, (no turbidity)

116
Q

Mycoplasma bovis form fried egg shaped colonies on solid media.

A

True

117
Q

Contagious bovine pleuropneumonia is caused by M. mycoides spp. mycoides SC.

A

True

118
Q

Sabouraud agar is used for culturing fungi.

A

TRUE

119
Q

Fungi are able to do photosynthesis.

A

False, (no photosynthesis)

120
Q

Mycotoxicosis is caused by fungal toxins.

A

True

121
Q

Malassezia pachydermatis has characteristics morphology, bottle-shape cells.

A

TRUE

122
Q

Cryptococcus neoformans form mucoid colonies on Sabouraud agar.

A

True

123
Q

Dermatophytes cause superficial mycosis.

A

False

124
Q

F2 toxin can cause reduced fertility in cattle.

A

True

125
Q

Equine epizootic lymphangitis is caused by Histoplasma farciminosum.

A

True

126
Q

Dimorphic fungi have yeast form in the host body.

A

True

127
Q

Stachybotrys Toxins can cause immunosuppression in horses.

A

True

128
Q
  1. The pH of Sabouraud agar is higher than 6.5.
A

False, (pH of 5.5)

129
Q
  1. Yeasts can be cultured at 37 degrees.
A

True

130
Q

Resistance of asexual spores is higher than sexual spores.

A

False, (sexual spores has higher resistance)

131
Q
  1. Malassezia pachydermatis can cause external otitis in dogs.
A

True

132
Q
  1. Microsporum sp. is a member of Dermatophytes.
A

True

133
Q
  1. Candida albicans can be found on mucous membranes of infected animals only.
A

False, (can be found in the intestinal tracts and in the oral cavities of healthy individuals also)

134
Q
  1. Cryptococcus neoformans cannot form colonies on artificial mediums.
A

True

135
Q
  1. Trichophyton verrucosum causes ringworm in cattle.
A

True

136
Q
  1. Aflatoxin is produced by Aspergillus fumigatus.
A

False, (by A. flavus)

137
Q
  1. Penicillin is produced by Penicillium rubrum.
A

False, (P. notatum, P. chrysogenum)

138
Q
  1. Fungi have five phyla.
A

True

139
Q
  1. Funguses are based on the 18S and the 26S ribosomal RNA gene.
A

True

140
Q
  1. Glomeromycota phyla of fungi symbioses with plant roots.
A

True

141
Q
  1. Dermatophytes are obligate anaerobic.

False, (obligate aerobic)

  1. Ochratoxin is produced by A. ochraceus.

True

  1. Fumonisins can cause pulmonary oedema in horses.

False, (in pigs)

A

False, (obligate aerobic)

142
Q
  1. Ochratoxin is produced by A. ochraceus.
A

True

143
Q
  1. Fumonisins can cause pulmonary oedema in horses.
A

False, (in pigs)

144
Q

ochraceus causes kidney degeneration in cattle.

A

False, (in poultry and pigs)

145
Q
  1. Patulin causes inhibition of ruminal flora.
A

True

146
Q
  1. Fusarium has pigment production.
A

True

147
Q
  1. T2 toxin can cause immunosuppression in cattle.
A

True, (also poultry and pigs)

148
Q
  1. F. moniliforme can cause leukoencephalomalacia in horses.
A

True

149
Q
  1. Stachybotrys atra forms black colonies.
A

TRUE

150
Q
  1. Dimorphic fungi have mould form on media only.
A

False, (mould and environment)

151
Q
  1. B. dermatitis can cause blastomycosis (granulomatosis).
A

True

152
Q
  1. S. schenckii causes subcutaneous granulomatosis in humans.
A

True, (also dog, cat and horse)

153
Q
  1. Coccidioides immitis causes systemic mycosis in humans.
A

True, (also dog, horse and cat)

154
Q
  1. Batrachochytrium dendrobatidis can cause chytridiomycosis of amphibians.
A

True

155
Q
  1. Dermatophytes can be cultured at 37 degrees.
A

False, (25 degrees)

156
Q
  1. Yeasts incubation condition time is 1-4 days.
A

True

157
Q
  1. Dermatophytes incubation condition time is 2-4 weeks.
A

True

158
Q
A

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