MPQ past Flashcards
- Which antibiotics have narrow spectrum?
A. tetracyclin
B. chloramphenicol
C. nitrofurantoin
D. rifampicin
D. rifampicin
- Belongs to the Procaryotes
A. Onlybacteria(Eubacteria)
B. Bacteria(Eubacteria)andArchea
C. Bacteria(Eubacteria)andArcheaandsinglecellFungi
D. Bacteria (Eubacteria) and Archea and single cell Fungi and Protozoa
B. Bacteria(Eubacteria)andArchea
- Which bacteria produces antibiotics?
A. Bacillus licheniformis
B. Streptomyces fradiae
C. Saccharopolyspora erythraea
D. All of them
D. All of them
- Which disinfectant is not inhibited by organic materials?
A. Lugol solution
B. NaOCl
C. Chloramine-B
D. All of them are inhibited
A. Lugol solution
- Which content can be found in the highest proportion in a bacterial dry material?
A. carbohydrates
B. pepides
C. minerals
D. lipids, waxes
A. Carbohydrates
- Which principle of antibiotic therapy is NOT correct?
A. Correct dosage
B. If there is any possibility of bacterial infection, use immediately the most effective antibiotic
C. tissue concentration must exceeds effective concentration in the site of infection
D. correct treatment time
B. If there is any possibility of bacterial infection, use immediately the most effective antibiotic
- Role of common fimbriae:
A. Tranfer of genital information (conjugation)
B. Adhesion to different surfaces
C. Helping the motility
D. protection against bacteriophages
B. Adhesion to different surfaces
- What is/are true for the typhoid and paratyphoid?
A. Only the seriousness is different in two cases
B. Different species can cause both in humans and animals the two different type of diseases.
C. Typhoid is the human disease name and paratyphoid is the animal disease name
D. None of them
B. Different species can cause both in humans and animals the two different type of diseases.
- Which bacteria are capnophile?
A. Bacillus anthracis, enterococcus faecalis
B. Mycobacterium tuberculosis, burkholderia mallei
C. Brucella abortus, histophilus somni
D. Rhodocossus equi, trueperella pyrogens
C. Brucella abortus, histophilus somni
- What is the role of F plasmid?
A. Helps the division of the bacterium
B. Controls the conjugation
C. Accelerates the metabolism of the bacterium
D. helps the defense of the bacterium against environmental challenges
B. Controls the conjugation
- Which antibiotics inhibit DNA synthesis, by inhibiting the synthesis of folic acid?
A. chloramphenicol, florfenicol
B. Sulphametoxazole, trimethorpim
C. Clindamycin, lincomycin
D. nitrofurantoin
B. Sulphametoxazole, trimethorpim
- Which antibiotic is bacteriocidal?
A. macrolides
B. aminoglycosides
C. sulfonamides
D. chloramphenicol, florfenicol
B. aminoglycosides
- Which statement is true about the gram staining?
A. We use 96% ethanol to extract fuchsin form gram + bacteria
B. We cannot stain the gram - bacteria with fuchsin, because they were stained by crystal violet and lugol’s iodine soultions before
C. Gram - bacteria loose their crystal violet and lugol’s iodine stained color during the process
D. In case of gram - bacteria, we use crystal violet and lugol’s iodine as counter staining.
C. Gram - bacteria loose their crystal violet and lugol’s iodine stained color during the process
- What is the mode of action of cationic detergents?
A. oxidation, cell wall and protein damage
B. reduction, alkylation
C. increased permeability, reaction with lipids, cytoplasm membrane damage
D. enzyme inactivation
C. increased permeability, reaction with lipids, cytoplasm membrane damage
- Which one is/are true for the mycoplasma genus?
A. they are the largest free-living microorganisms in the world
B. they do not have a cell wall
C. they live only in animals
D. all of the three are true
B. they do not have a cell wall
- Which energy yielding mechanism do not have the eukaryotes?
A. Fermentation
B. Aerobic respiration
C. Anaerobic respiration
D. photosynthesis
C. Anaerobic respiration
- Which is not a name of a group of bacteria?
A. Sarcina
B. Spirillum
C. Pallisade
D. bunch of grapes
D. bunch of grapes
- Which antibiotics resistance test cannot result in minimal inhibitory concentration (MIC) values?
A. Disc diffusion method
B. broth dilution method
C. E-test
D. neither test can result MIC
A. Disc diffusion method
ONLY broth dilution method can result in MIC??!!
- Which statements is/are true?
A. catalase positive campylobacter species are facultative pathogens
B. campylobacter species are microaerophils
C. catalase negative campylobacter species are saprophytes
D. all of the three are true
D. all of the three are true
- Bacteria cell wall
A. Essential cell component, every bacterial genus has it
B. Essential cell component, but not every bacterial genus has it
C. Non.essential cell component, every bacteria genus has it
D. Non-essential cell component, and not every bacteria has it
B. Essential cell component, but not every bacterial genus has it
EVERY bacteria has it, except mycoplasma
- The origin of antibiotics resistance is…
A. Innate
B. Acquired
C. Can be both
D. neither
C. Can be both
- Which factors are involved in the high resistance of bacterial spores?
A. Layered structure
B. Dehydration
C. negligible metabolism
D. All of them
A. Layered structure
- Which amino acid is the base of indole production?
A. Glutamic acid
B. Methionin
C. Valine
D. Tryptophan
D. Tryptophan
- Stains of the Gram staining
A. Crystal violet, lugol’s iodine, methylene-blue
B. Methylene-blue, lugol’s iodine, carbol-fuchsin
C. Toluidine-blue, lugol’s iodine, crystal violet
D. Crystal violet, lugol’s iodine, fuchsin
D. Crystal violet, lugol’s iodine, fuchsin
- Which statement is true about agar agar?
A. Melting point is 45-50 (85-90)
B. Solidifying point is at 85-90 (45-50)
C. most of bacteria cannot split
D. chemically it is polypeptide
C. most of bacteria cannot split
- Which statement is true about peptidoglycan?
A. composed of lipopolysaccharide complex
B. Lysosim cannot split
C. Composed of N-acetyl glucosamine and N-acteyl muramic acid and peptide subunits
D. forms a ticker layer in gram negative bacteria, compared to gram +
C. Composed of N-acetyl glucosamine and N-acteyl muramic acid and peptide subunits
- Which genus can be facultative pathogenic?
A. sarcina
B. Ruminococcus
C. peptoniphilus
D. all of them
D. all of them
- Which one is NOT true?
A. X factor mean heam which can be provided with blood enrichment in agar
B. SomeHaemophilusneedsalsoCO2duringtheircultivation
C. V factor means NAD which can be provided by yeast extract or satellite strains co-cultivation
D. Haemophilus species do not need either X or V factor
D. Haemophilus species do not need either X or V factor
- Can produce antibiotics
A. Bacillus cereus, Bacillusthuringiensis
B. Bacillusmegaterium, Bacillus Subtilis
C. Bacillus licheniformis, Paenibacillus polymyxa
D. Paenibacillus larvae, Geobacillus strearothermophilus
C. Bacillus licheniformis, Paenibacillus polymyxa
- •B. licheniformis/subtilis: bacitracin production
- • Paenibacillus (B.) polymyxa: polymyxin production
- Which disinfectant can be used as hand disinfectant?
A. chloramine-B
B. Cationic detergents
C. Ethyl-alcohol
D. All of them
A. chloramine-B
D. All of them? The others can be used on skin, so that equals hands as well?
Chloramine-B does say hand
- Which one(s) can cause the potomac horse fever?
A. Microsporum gypsum
B. Microsporum canis
C. Trichophyton mentagrophytes
D. None of them
D. None of them
Neorickettsia risticii: Potomac horse fever (N-America, Europe)
- What antibiotic is effective against only Gram-positive bacteria
A. Polymyxin
B. Tetracycline
C. Vancomycin
D. Florfenicol
C. Vancomycin
- Which bacteria could be often multiresistant to antibiotics?
A. Mycobacterium spp.
B. Enterococcus spp.
C. Pseudomonas aeruginosa
D. All of them
D. All of them
- Which one(s) is/are true for the ureaplasma genus?
A. Faculatative anaerobes
B. CO2 demand for their cultivation
C. Cholesterol demand for their cultivation
D. All of the three are true
D. All of the three are true
- Which spores are formed asexual?
A. Zygospora
B. Ascospora
C. Basidiospora
D. Sporangiospora
D. Sporangiospora
- Tetracyclines
A. Causing the misreading of mRNA, so faulty proteins are produced
B. Inhibit the binding of tRNA to the ribosomes
C. Inhibit the peptidyl-transferase enzyme, so inhibit transpeptidation
D. Inhibit the transpeptidase enzyme, inhibiting the synthesis of acetyl – muramic acid
B. Inhibit the binding of tRNA to the ribosomes
- Which production could be encoded in plasmids?
A. Haemolysins
B. Toxins
C. Colicins
D. All of them
D. All of them
- What affects the size of zone of inhibition in case of a disc diffusion antibiotic…
A. Sizeofinoculum
B. Medium
C. Incubation conditions (temperature, time atmosphere)
D. All of them
D. All of them
- Which factors can affect the shape of bacteria
A. Ingredientsofthemedium
B. Ageofculture
C. Temperature
D. All of them
D. All of them
- Location of the bacterial amino acid synthesis
A. Cytoplasmicmembrane
B. Cytoplasm
C. Cell wall
D. Plasmids
B. Cytoplasm ??
- What osmotic pressure to bacteria demand, in general?
A. Equal to 0.35% NaCl solution
B. Equal to 0,85% NaCl solution
C. Equal to 1,25% NaCl solution
D. Equal to 3,5% NaCl solution
B. Equal to 0,85% NaCl solution
- Which antibiotic is bactericidal?
A. Macrolides
B. Aminoglycosides
C. Sulfonamides
D. Chloramphenicol, florfenicol
B. Aminoglycosides
- If an antibiotic is bacteriostatic, that means…
A. Inhibits the motility of the bacteria
B. Inhibits the propagation of the bacteria
C. Causes damage of the cytoplasm membrane
D. Inhibits the toxin production of bacteria
B. Inhibits the propagation of the bacteria
- Number of bacteria harbored in a human body compared to the number…
A. Minimal, the human body is almost sterile
B. Less
C. Nearly equal
D. More
D. More
45. What is the PPD?
A. A Quality assurance and safety protocol for laboratories, working with Mycobacteria
B. Name of the vaccine strain against human tuberculosis. The letters are the monograms of the developers
C. Purified protein derivative: a purified antigen extract used in the tuberculin test
D. Once effective disinfectant against Mycobacteria, nowadays banned because of carcinogenicity
C. Purified protein derivative: a purified antigen extract used in the tuberculin test
- Which chemical does NOT have disinfective effect, but used together with other disinfectants?
A. Aceticacid
B. Ethyl-alcohol
C. Anionic detergents
D. AgNO3
D. AgNO3
- What Is the mode of action in chlorine compounds?
A. Oxidation, cell wall, and protein damage
B. Reduction, alkylation
C. Increase permeability, cytoplasm membrane damage
D. Reacting with lipids
A. Oxidation, cell wall and protein damage
- Which sterilization method uses dry heat?
A. Hot air oven
B. Autoclave
C. Fraction sterilization
D. Neither
A. Hot air oven
- What kind of information can we get, if we examine bacteria in wet chamber?
A. Shape , size, arrangement
B. Motility
C. Both A and B
D. neither
C. Both A and B
- Which method CANNOT be used to count the total live count?
A. Broth dilution method
B. Membrane filter method
C. Electronic cell count
D. Both A,B,C are impossible
A. Broth dilution method
B. Membrane filter method
ONLY electronic cell count can be used to TOTAL LIVE COUNT
Membrane filter method can be used to count the VIABLE CELL COUNT
- Bacteriophages involved in phage conversion are
A. Lyticphages
B. Temperate phages
C. Both A and B are possible
D. Neither
D. Neither
Prophage
- Does NOT belong to the Eucaryotes
A. Algae (except of Blue algae)
B. Protozoa
C. Archea
D. Yeasts
C. Archea
- Role of sex fimbriae
A. Transfer of genetical information (conjugation)
B. Adhesion to different surfaces
C. Helping the cleavage of the bacteria (multiplication of the bacterial cell)
D. Regulation of the multiplication of the nuclear material
A. Transfer of genetical information (conjugation)
- Role of endospores
A. Survival during adverse environmental conditions
B. Multiplication of the bacterial cell (one vegetative cell -> more spores -> more vegetative cell)
C. Both A and B
D. Neither
C. Both A and B
- What are the signals for sporulation
A. Higher temperature, drying
B. Nutrient resource depletion
C. Accumulation of waste metabolites
D. All of them
D. All of them
- Role of bacteria in the nitrogen cycle
A. Decompositionofdeadanimalsandplants
B. Fixation of N2
C. Production of NO2, NO3
D. All of them
D. All of them
- What is the pH level of an ordinary medium
A. 5,6-5,9
B. 6,7-6,9
C. 7,2-7,4
D. 7,6-8,1
C. 7,2-7,4
- Which statement is true about phase-contrast microscopes
A. Special staining method is needed for observing bacteria
B.Contrast material has to be dropped between the objective lens and the slide
C. Can be achieved about 10 times higher magnification compared to ordinary bright-field microscopes
D. We can see high image contrast without any staining, so distortion of staining can be eliminated
D. We can see high image contrast without any staining, so distortion of staining can be eliminated
- Obligate anaerobic bacterial genera
A. Staphylococcus, Rhodococcus, pseudomonas
B. Enterococcus, Enterobacter, Escherichia
C. Brachyspire, Fusobacterium, clostridium
D. Actinobacillus, bacillus, erysipelothrix
C. Brachyspire, Fusobacterium, clostridium
- A staining method when the colour in case of positive result is blue (purple)
A. Gram
B. Ziehl-Neelsen
C. Köster
D. All of them
A. Gram
- Fixation is needed during the preparation of smears, in order to
A. Make the cell wall of the bacteria permeable to stains
B. Stick bacteria on the surface of the slide, preventing to wash them off
C. Both A and B
D. Neither
B. Stick bacteria on the surface of the slide, preventing to wash them off
- What is the right order of the fungal part, according to their resistance
A. Vegetative parts > sexual spore > asexual spore
B. Asexual spore > vegetative parts > sexual spore
C. Sexual spore > asexual spore > vegetative parts
D. Asexual spore > sexual spore > vegetative parts
C. Sexual spore > asexual spore > vegetative parts
- Eucaryotes do NOT have this
A. Endoplasmic reticulum
B. Golgi-complex
C. Ribosome size: 70 S
D. Ribosome size: 80 S
C. Ribosome size: 70 S
- What is the mode of action of aldehyds?
A. Oxidation, cell wall, and protein damage
B. Reduction, alkylation, cell wall, damage of nucleic acid and proteins, cell wall damage
C. Increased permeability, reaction with lipids, cytoplasm membrane damage
D. Enzyme inactivation
B. Reduction, alkylation, cell wall, damage of nucleic acid and proteins, cell wall damage
- Which statement is true about bacterial cell walls?
A. Protects bacteria from mechanical damage and osmotic lysis
B. Permeability is not selective
C. Determines the shape and the staining of the bacteria
D. All of them
D. All of them
- What results resistancy against aminoglycosides?
A. Enzymatic drug inactivation
B. Modification of binding sites
C. Both A and B
D. Neither
C. Both A and B
- What is the advantage of using real-time PCR?
A. Faster, every result can be read immediately
B. Quantitative
C. Less costs
D. All of them
A. Faster, every result can be read immediately
- What is NOT a name of a group of bacteria?
A. Sarcina
B. Spirillum
C. Palisade
D. bunch of grapes
C. Palisade
- Capsular materials can be
A. Peptidoglycan
B. Lipopolysaccharide
C. Hyaluronic acid
D. All of them
C. Hyaluronic acid
- What is the role of bacterial pigments?
A. Protection from light, redoxprocesses
B. Photosynthesis
C. Nutrient-reservoir, pH adjustment (buffers)
D. Virulence factor
A. Protection from light, redoxprocesses
- Which statement is NOT true about fermentation?
A. Oxidation which dehydrogenation , in the absence of CO2
B. Basis: glucose,glucose-6-phosphate
C. Excess carbohydrates, end product: only CO2 and water
D. Limited carbohydrate end product: organic acids, alcohol
C. Excess carbohydrates, end product: only CO2 and water
- Which antibiotics inhibit DNA-dependent RNA polymerase enzyme
A. Beta-lactam antibodies
B. Macrolides
C. Nitrofurantoin
D. Rifampins
D. Rifampins
- What affects the size of the zone of inhibition in the case of disc diffusion antibiotic susceptibility tests?
A. Size of inoculum
B. Medium
C. Incubation conditions (temperature, time, atmosphere…)
D. All of them
D. All of them
- Culture of the Tyzzer’s disease
A. Onnutrientagar
B. Onbloodagar
C. On salt-mannitol agar
D. Only on cell cultures (mouse fibroblast or liver cells), or in embryonated eggs
D. Only on cell cultures (mouse fibroblast or liver cells), or in embryonated eggs
- Plasmids
A. Round shaped
B. Replicate independently
C. Can be transported to a different bacterial cell during conjugation
D. All of them
D. All of them
- Which statement is true about the nuclear material of bacteria
A. Chromosome is bound to the cytoplasmic membrane at one point
B. Surrounded by the nuclear membrane
C. Mostly diploid
D. Composed of dsRNA in superhelix
A. Chromosome is bound to the cytoplasmic membrane at one point
- What is true about the simple staining?
A. only one kind of stain is used
B. the result color is the same by every bacterial component
C. Both A and B
D. Neither
C. Both A and B
- Which method can be used to count the total cell count?
A. microscopic count (burker chamber)
B. Spectrophotometer
C. Real time PCR
D. Broth dilution method
A. microscopic count (burker chamber)
- What are the adverse effects of aminoglycoside antibiotics?
A. ototoxic, nephrotoxic
B. neurotoxic
C. carcinogenic
D. hypersensitivity reaction (anaphylactic reaction)
A. ototoxic, nephrotoxic
- Location of the bacterial amino acid synthesis
A. cytoplasmic membrane
B. cytoplasm
C. cell wall
D. plazmids
B. cytoplasm ??
- What are the damage of the usage of ethylene oxid?
A. carcinogenic
B. explosive
C. corrosive
D. slow decomposition in the environment
A. carcinogenic
- Which statement is NOT true about heterotrophic bacteria?
A. organic carbon source is needed in their metabolism
B. facultative pathogenic bacteria are facultative heterotrophic, they can utilize anorganic matter as well
C. every obligate pathogenic bacteria are heterophic
D. saprophytic bacteria could be also heterotrophic
B. facultative pathogenic bacteria are facultative heterotrophic, they can utilize anorganic matter as well
- Which antibiotics produce metabolites active against DNA?
A. metronidal, nitrofurantoin
B. ciprofloxacin, flumequine
C. tilmicosin, tiamulin
D. cephtiofur, cephalexin
A. metronidal, nitrofurantoin
- Which sterilisation uses wet heat?
A. autoclave
B. boiling
C. fraction sterilization
D. all of them
D. all of them
- What results in resistancy against tetracyclines?
A. Enzymatic drug inactivation
B. Modificationofbindingsites
C. Decreased intracellular accumulation
D. Alternation in metabolism
A. Enzymatic drug inactivation
- What is true about the capsule production of bacteria?
A. encoded in the genome, the environment does not effect
B. encoded in the genome, the environment effects
C. there is NO correlation between the capsular production and colonial morphology
D. cannot be visualised by staining
B. encoded in the genome, the environment effects
- What is the mode of action of dyes (as disinfectants)?
A. oxidation, cell wall and protein damage
B. reduction, alkylation
C. increased permeability, reaction with lipids, cytoplasm membrane damage
D. enzyme inactivation
D. enzyme inactivation
- Which statement is true about the plasmid of bacteria
A. Consist of dsRNA, linear
B. Consist of dsRNA, circular
C. Consist of dsDNA, linear
D. Consist of dsDNA, circular
D. Consist of dsDNA, circular
- Blood agar is
A. common, differential medium
B. common, selective medium
C. differential, selective medium
D. natural, common medium
A. common, differential medium
- The microaerophil means that:
A. TheneeddecreasedCO2level
B. TheyneedincreasedCO2level(20%)
C. They need increased oxygen level (26%)
D. They need CO2 (10%) and decreased oxygen (6%) level.
D. They need CO2 (10%) and decreased oxygen (6%) level.
- Which antibiotics inhibit protein synthesis?
A. Sulfonamides
B. Quinolones
C. Macrolides
D. Cephalosporins
C. Macrolides
- Which staining method is a differential staining?
A. Gram
B. Stamp
C. Both A and B
D. Neither
C. Both A and B
- Bacteriological staining methods, sorted according to the time needed to their process. Started with the longest.
A. Every staining methods are more or less equal long
B. Ziehl-Neelsen>Gram>Köster
C. Ziehl-Neelsen > Köster > Gram
D. Klöster > Ziehl-Neelsen > Gram
B. Ziehl-Neelsen>Gram>Köster
- What is the optimal temperature of mesophile bacteria ???
A. <15C
B. 15-45C
C. 45C
D. temperature does not affect the propagation
B. 15-45C
- What is the optimal temperature of thermophile bacteria
A. <15C
B. 22-37C
C. 15-45C
D. 45C<
D. 45C<
- A staining method when the color in case of the negative result is red (pink)
A. Gram
B. Ziehl-Neelsen
C. Köster
D. Stamp
A. Gram
- NON-essential cell component
A. Cytoplasmic reticulum
B. Cytoplasm
C. Nucleus
D. Flagella
D. Flagella
- What happens in the lag phase of the bacterial propagation?
A. Cell count number is not changed, biosynthesis of induced enzymes, bacterias are getting used to the new environment.
B. Cellcount number is not changed, replication and cell death is balanced
C. Intensive division, the exponential increase of the cell count
D. Decreased cell count, death of the culture
A. Cell count number is not changed, biosynthesis of induced enzymes, bacterias are getting used to the new environment.
- Which antibiotics is bacteriostatic
A. Beta-lactamase antibiotics
B. polypeptides
C. tetracyclines
D. vancomycin
C. tetracyclines
- Which disinfectant can be used to disinfect wounds?
A. iodophors
B. mercurochrom
C. lactic acid
D. all of them
D. all of them
- What is the difference between the blood agar and the nutrient agar?
A. in case of the blood agar, the water content of the medium if fully replaced by blood
B. blood agar is synthetic, nutrient agar is a natural medium
C. blood agar is a selective, nutrient agar is a common medium
D. blood agar contains 10% defibrinated sheep blood
D. blood agar contains 10% defibrinated sheep blood
- Which one can infect humans as well?
A. trichophyton mentagrophytes
B. trichopyton verrucosum
C. microsporum gyseum
D. all of the three are true
D. all of the three are true
- Role of bacteria in environment?
A. decomposition of organic matter and other material
B. recycling of materials
C. nutrient reservoir
D. all of them
D. all of them
- Which statement is NOT true about conjungation?
A. ssDNA transfered
B. amount of transfered DNA is time dependent
C. directed by R plasmid
D. transfer goes both ways
D. transfer goes both ways
- NOT causes malignant edema:
A. Clostridium, Bacillus anthracis
B. Clostridium, Bacillus subtilits
C. Clostridium Bacillus cereus
D. Clostridium, Bacillus megaterium
C. Clostridium Bacillus cereus
- What is the danger of the usage of peracetic acid?
A. carcinogenic
B. explosive, corrosive
C. toxic
D. slow decomposition in the environment
B. explosive, corrosive
- For what is used a dark field microscope?
A. examination of motility
B. oberseriving pigment granules of bacteria
C. cell counting
D. observing surface structures of bacteria
A. examination of motility
- Cell wall of Gram + bacteria:
A. composed of a 2 layered peptidoglycan
B. ratio of N-acetyl muramic acid crosslinks 30%
C. contains peptide cross-bridges
D. closed, non-permeable
C. contains peptide cross-bridges
- Cell wall of gram negative bacteria
A. composed of a 10-12 layered peptidoglycan
B. ratio of N-acetyl muramic acid crosslinks 100%
C. contains lipoprotein-liposaccharide complex van benne
D. porous, permeable
D. porous, permeable
- Carbon amount harbored in all bacteria of the world compared to the carbon amount harboured in all plants of the world
A. less
B. nearly equal
C. more (2-10x)
D. much more (100-1000x)
A. less
- Which statement is true about the chromosomes of bacteria?
A. consists of dsDNA
B. in most of the cases haploid
C. in most cases circular
D. all of them
D. all of them
- Which sterilization method uses wet heat
A. Autoclave
B. Boiling
C. Fraction sterilization
D. All of them
D. All of them
- Which statement is true about the capsule production of bacteria?
A. Encoded in the genome,the environment does NOT effect
B. Encoded in the genome,the environment effects
C. There is NO correlation between the capsular production and the colonial morphology
D. Cannot be visualized by staining
B. Encoded in the genome,the environment effect
- What is the mode of action of dyes (as disinfectants)
A. oxidation,cell wall and protein damage
B. Reduction, alkylation
C. Increased permeability, reaction with lipids, cytoplasm membrane damage
D. Enzyme inactivation
D. Enzyme inactivation
- What is the mode of action of chlorine compounds
A. Oxidation cell wall and protein damage
B. reduction, alkylation
C. Increased permeability, cytoplasm membrane damage
D. Reacting with lipids
A. Oxidation cell wall and protein damage
- Which statement is true about the chromosomes of bacteria
A. Consists of dsDNA
B. In most of cases haploid
C. In most of the cases circular
D. All of them
D. All of them
- What are the dangers of the usage of peracetic acid?
A. Carcinogenic
B. explosive,corrosive
C. Toxic
D. Slow decomposition in the environment
B. explosive,corrosive
- The causative agent of the greasy pigs disease
A. Staph.Aureus subsp.Aureus
B. Staph.Hyicus
C. Strep. Porcinus
D. None of the above
B. Staph.Hyicus
- Which statement is true about the plasmids of bacteria
A. ConsistofdsRNA,linear
B. ConsistofdsRNA,circular
C. Consist of dsDNA, linear
D. Consist of dsDNA, circular
D. Consist of dsDNA, circular
- Blood agar is…
A. Common, differential medium
B. Common, selective medium
C. Differential, selective medium
D. Natural, common medium
A. Common, differential medium
- Which disinfectant can be used to disinfect wounds
A. Iodophors
B. Mercurochrom
C. Lactic acid
D. All of them
D. All of them
- Bacterial cell wall
A. Essential cell component, every bacterial genus has it
B. Essential cell component,but not every bacterial genus hasit
C. Non-essential cell component, every bacterial genus has it
D. Non-essential cell component, and not every bacterial genus has it
B. Essential cell component,but not every bacterial genus hasit
- Which staining method can be used to stain mycobacteria
A. Ziehl-Neelsen staining,they cannot be stained by Gram staining B. Koster staining,they cannot be stained by gram staining
C. Modified gram staining (acid- alcohol is used for differentiation)
D. Stamp staining, they cannot be stained by gram staining
C. Modified gram staining
(acid- alcohol is used for differentiation)
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Which antigen is NOT included in the toxin of bacillus anthracis?
A. Oedema factor
B. Heat stabile polysaccharide hapten
C. lethal factor
D. Protective antigen
B. Heat stabile polysaccharide hapten
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- NOT flagellated
A. Bacillus anthracis
B. Bacillus subtilis
C. Bacillus cereus
D. Bacillus megaterium
A. Bacillus anthracis
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- NOT flagellated
- Used as insecticides in bio-gardens:
A. bacillus cereus
B. paenibacillus larvae
C. paenibacillus polymyxa
D. Bacillus thuringiensis
D. Bacillus thuringiensis
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- The most characteristic form of anthrax in the case of horses
A. Peracute form, septicemia
B. Subacute anthrax, oedematous swelling in the pharyngeal region
C. Subacute anthrax with localised oedema, septicaemia with coli and enetritos
D. Pulmonary anthrax
C. Subacute anthrax with localised oedema, septicaemia with coli and enetritos
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Can produce bacitracin
A. Bacillus subtilis
B. bacillus megaterium
C. bacillus licheniformis
D. Paenibacillus polymyxa
C. bacillus licheniformis
&
A. Bacillus subtilis
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Conditions of spore-forming of Bacillus anthracis
A. CO2 and at least 15oC
B. CO2 and at least 37oC
C. O2 and at least 15oC
D. O2 and at least 37oC
C. O2 and at least 15oC
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Which stain can be used to stain Bacillus anthracis and its capsule? What is the result of the (staining)?
A. Methilene- blue, bacteria: blue, capsule pink
B. Methilene- blue, bacteria: pink, capsule blue
C. Toluidine-blue, bacteria: blue, capsule pink
D. Toluidine- blue, bacteria: pink, capsule blue
C. Toluidine-blue, bacteria: blue, capsule pink
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- The most characteristic form of anthrax in the case of sheep.
A. Peracute form, septicaemia
B. Subacute anthrax, oedematous swelling in the pharyngeal region
C. Haemorrhagic enteritis
D. Pulmonary anthrax
A. Peracute form, septicaemia
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Method/s NOT advisable to be used by the diagnostic of anthrax
A. Making impression smear and staining
B. Culture
C. PCR
D. Pathological examination
D. Pathological examination
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Possible human forms of anthrax
A. Skin anthrax
B. Pulmonary anthrax
C. Intestinal anthrax
D. All of them
D. All of them
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- The capsule material of Bacillus Anthracis
A. PolyD-glutamic acid
B. PolyL-glutamic acid
C. Poly D- aspartic acid
D. Poly L- aspartic acid
A. PolyD-glutamic acid
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Pathogenicity of bacillus cereus in humans:
A. septicemia
B. food poisoning, eye infections
C. arthritis
D. pneumonia
B. food poisoning, eye infections
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Can produce antibiotics
A. bacillus cereus, bacillus thuringiensis
B. bacillus megaterium, bacillus subtilis
C. bacillus licheniformis, paenibacillus polymyxa
D. paenibacillus larvae, geobacillus strearothermophilus
C. bacillus licheniformis, paenibacillus polymyxa
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Rarly can cause mastitis in cattle
A. bacillus anthracis
B. bacillus subtilis
C. bacillus cereus
D. bacillus megaterium
C. bacillus cereus
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Culture of bacillus anthracis
A. fastidious, grows only on blood agar by the presence of CO2, but for the capsule production O2 is needed
B. fastidious, grows only on blood agar by the presence of O2, but for the capsule production CO2 is needed
C. simple, facultative anaerobic, but for the capsule production O2 is needed
D. simple, but obligate aerobic, for the capsule production CO2 is needed
D. simple, but obligate aerobic, for the capsule production CO2 is needed
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Which statement is not true about Bacillus anthracis?
A. Flagellated
B. has capsule
C. can form spores
D. 4-5 micrometer long, rod shaped
A. Flagellated (no flagella)
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Pathogenity of bacillus cereus in humans
A. Septicaemia
B. Food poisoning,eye infections
C. Arthritis
D. Pneumonia
B. Food poisoning,eye infections
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Can produce antibiotics
A. Bacillus cereus, thuringiensis
B. Bacillus megaterium, subtilis
C. Bacillus licheniformis, paenibacillus polymxa
D. Paenibacillus larvae, geobacillus strearothermophilus
C. Bacillus licheniformis, paenibacillus polymxa
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Causing a notifiable disease
A. Bacillus cerus
B. Bacillus licheniformis
C. Bacillus thuringiensis
D. Paenibacillus larvae
D. Paenibacillus larvae
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Can produce antibiotics
A. bacillus cereus, bacillus thuringiensis
B. bacillus megaterium, bacillus subtilis
C. bacillus licheniformis, paenibacillus polymyxa
D. paenibacillus larvae, geobacillus strearothermophilus
C. bacillus licheniformis, paenibacillus polymyxa
SPECIFIC BACTERIOLOGY
Bacillus, Paenibacillus
- Can cause sporadic abortions in cattle
A. B.Licheniformis
B. B.megaterium
C. B. subtilis
D. B.Thuringiensis
A. B.Licheniformis
SPECIFIC BACTERIOLOGY
Clostridium
- Location and size of the spores of Clostridia
A. Terminal, subterminal or central, diameter of spore is less or equal compared to the bacterial cell
B. Terminal, subterminal or central, diameter of spore is larger compared to the bacterial cell
C. Only central, diameter of spore is larger compared to the bacterial cell
D. Only central, diameter of spore is less or equal to the bacterial cell
B. Terminal, subterminal or central, diameter of spore is larger compared to the bacterial cell
SPECIFIC BACTERIOLOGY
Clostridium
- Clostridium difficile belongs to this group of clostridia:
A. Neurotoxic
B. histotoxic
C. enteropathogenic
D. other
C. enteropathogenic
SPECIFIC BACTERIOLOGY
Clostridium
- Clostridium perfringens is a exception amongst the Clostridia, because
A. Theoptimalculturetemperatureisdifferent(40-45C)
B. Hascapsule,butnoflagella
C. Both are true
D. Neither are correct
C. Both are true
SPECIFIC BACTERIOLOGY
Clostridium
- Clostridium chauvoei belongs to this group of clostridia:
A. Neurotoxic
B. histotoxic
C. Enteropathogenic
D. other
B. histotoxic
SPECIFIC BACTERIOLOGY
Clostridium
- Susceptible to clostridium difficile
A. Chicken, turkey
B. Quail, pheasant
C. Both
D. Neither
D. Neither
(human, foul, dog)
SPECIFIC BACTERIOLOGY
Clostridium
- Causative agent of blackleg
A. Clostridium septicum
B. Clostridium chauvoei
C. Clostridium sordelli
D. Clostridium haemolyticum
B. Clostridium chauvoei
SPECIFIC BACTERIOLOGY
Clostridium
- Habitat of clostria:
A. soil
B. intestines of animals
C. mud,water
D. all of them
D. all of them
SPECIFIC BACTERIOLOGY
Clostridium
- The causative agent of necrotic enteritis of pigs
A. Clostridium perfringens A
B. Clostridium perfringens B
C. Clostridium perfringens C
D. Clostridium perfringens D
C. Clostridium perfringens C
SPECIFIC BACTERIOLOGY
Clostridium
- Causative agents of blackleg
A. Clostridium septicum
B. Clostridium chauovei
C. Clostridium sordelli
D. Clostridium haemolyticum
B. Clostridium chauovei
SPECIFIC BACTERIOLOGY
Clostridium
- Clostridium colinum causes ulcerative enteritis to:
A. dogs
B. foals
C. both
D. neither
D. neither
quail, chicken, turkey, pheasant:
ulcerative enteritis: intestinal ulceration, hepatic necrosis
SPECIFIC BACTERIOLOGY
Clostridium
- Main location the production of botulinum toxin
A. In rotting materials, feeds, canned foods
B. Indeep(anaerobic)wounds
C. In bacteria located in the bloodstream
D. In lakes, ponds, and still waters
A. In rotting materials, feeds, canned foods
SPECIFIC BACTERIOLOGY
Clostridium
- Especially susceptible to tetanus
A. Horse
B. Human
C. Both
D. Neither
C. Both
SPECIFIC BACTERIOLOGY
Clostridium
- Which statement is NOT true about the bacteria of the clostridium genus?
A. can form spores
B. large sized gram + rods
C. obligate aerobic bacteria
D. catalase and oxidase -
C. obligate aerobic bacteria
SPECIFIC BACTERIOLOGY
Clostridium
- Black discoloration in the muscles is visible
A. in case of leasion caused by clostridium novyi
B. in case of leasion caused by clostridium chauvoei
C. in case of leasion caused by clostridium histolyticum
D. in case of leasion caused by clostridium haemolyticum
B. in case of leasion caused by clostridium chauvoei
SPECIFIC BACTERIOLOGY
Clostridium
- Clostridium piliforme belongs to this group of clostridium:
A. neurotoxic
B. histotoxic
C. enteropathogenic
D. other
D. other
- systematic position questionable
- disease: Tyzzer’s disease (dog, cat, foal, rabbit)
SPECIFIC BACTERIOLOGY
Clostridium
- Causative agent of infectious necrotizing hepatitis
A. Clostridium novyi
B. Clostridium chauvoei
C. Clostridium histolyticum
D. Clostridium septicum
A. Clostridium novyi
SPECIFIC BACTERIOLOGY
Clostridium
- Clostridium perfringens B is the causative agent of
A. necrotic enteritis of chicken
B. necrotic enteritis of pigs
C. lamb dysentery
D. sheep enterotoxaemia (pulpy kidney disease)
C. lamb dysentery
SPECIFIC BACTERIOLOGY
Clostridium
- The neurotoxin of clostridium botulinum…
A. split synaptobrevin inhibitory nerves, so causes rigid paralysis
B. split synaptobrevin cholinerg nerves, so causes rigid paralysis
C. split synaptobrevin in inhibitory nerves, so causes flaccid paralysis
D. split synaptobrevin in cholinergic nerves, so causes flaccid paralysis
D. split synaptobrevin in cholinergic nerves, so causes flaccid paralysis
SPECIFIC BACTERIOLOGY
Clostridium
- What kind of lesions can be caused by peptostreptococcus species
A. metritis, arthritis, pneumonia
B. enteritis, ulcers in the large intestines
C. wound infection, dermatitis
D. rumen atony, abomasum displacement
A. metritis, arthritis, pneumonia
SPECIFIC BACTERIOLOGY
Clostridium
- The spores of clostridium botulinum are especially resistant to
A. acids
B. disinfectants
C. heat
D. antibiotics
C. heat
SPECIFIC BACTERIOLOGY
- Causative agent of Morel’s disease of sheep?
A. Staphylococcus aureus subsp. aureus
B. Staphylococcus aureus aubsp. anaerobius
C. Corynebacterium pseudotuberculosis, biotype NO3 positive
D. Corynebacterium pseudotuberculosis, biotype NO3 negative
B. Staphylococcus aureus aubsp. anaerobius
SPECIFIC BACTERIOLOGY
Staphylococcus
- Morphology of Staphylococci
A. Gram+, cocci, in a formation like a bundle of grape
B. Gram+coccirodsinpalisadeformation
C. Gram + cocci in chains
D. Gram - cocci in pairs
A. Gram+, cocci, in a formation like a bundle of grape
SPECIFIC BACTERIOLOGY
Staphylococcus
- Can be the extracellular enzyme of staphylococci
A. coagulase
B. fibrinolysin
C. hyaluronidase
D. all of them
D. all of them
SPECIFIC BACTERIOLOGY
Staphylococcus
- Main habitat of staphylococci
A. Skin, mucosal surface
B. Food, feed, the surface of plants
C. Soil, water
D. All of them
D. All of them
SPECIFIC BACTERIOLOGY
Staphylococcus
- Susceptible species to staphylococcus aureus infections
A. Cattle, sheep, goat
B. Poultry, carnivores
C. Horse, swine
D. All of them
D. All of them
SPECIFIC BACTERIOLOGY
Staphylococcus
- Causes otitis externa in dogs and cats
A. Staphylococcusintermedius
B. Staphylococcusfelis
C. Staphylococcus pseudintermedius
D. Staphylococcus haemolyticus
C. Staphylococcus pseudintermedius
SPECIFIC BACTERIOLOGY
Staphylococcus
- Can be the toxin of Staphylococci
A. Dermotoxin (exfoliative toxin)
B. Shiga-toxin
C. Verotoxin
D. Leucotoxin
A. Dermotoxin (exfoliative toxin)
SPECIFIC BACTERIOLOGY
Staphylococcus
- Lesions caused by staphylococcus aureus
A. Diamondskindisease, myocarditis
B. Local suppuration, mastitis, abscesses, arthritis,metritis
C. Central neural symptomes, neruopathy
D. Gastro-enteritis, diarrhea, hepatitis
B. Local suppuration, mastitis, abscesses, arthritis,metritis
SPECIFIC BACTERIOLOGY
- Can cause mastitis in cattle
A. staphylococcus aureus
B. streptococcus uberis, streptococcus dysgalactiae, streptococcus agalacticae
C. escheridae coli
D. all of them
D. all of them
SPECIFIC BACTERIOLOGY
- Causative agent of greasy pig disease?
A. staphylococcus aureus, subsp. aureus
B. staphylococcus hyicus
C. streptococcus procinus
D. streptococcus suis
B. staphylococcus hyicus
SPECIFIC BACTERIOLOGY
Staphylococcus
- Fowl typhoid is caused by
A. S.gallinarum
B. S.typhimurium
C. S.typhi
D. S.enteritidis
A. S.gallinarum
SPECIFIC BACTERIOLOGY
Staphylococcus
- Fowl parathyroid is caused by
A, S. Gallinarum
B. S. Paratyphi
C. S. Enteritidis
D. S. Typhisuis
A, S. Gallinarum
SPECIFIC BACTERIOLOGY
Staphylococcus
- Which species is coagulase negative?
A. Staphylococcus aureus subsp. Anaerobius
B. Staphylococcus haemolyticus
C. Staphylococcus pseudintermedius
D. Staphylococcus intermedius
B. Staphylococcus haemolyticus
SPECIFIC BACTERIOLOGY
Micrococcus
- Habitat of Micrococci
A. Skin and mucosal surfaces
B. Environment, food
C. Both A and B
D. Neither
C. Both A and B
SPECIFIC BACTERIOLOGY
- Obligate aerobic bacterial genera
A. Staphylococcus, Actinomyces, Listeria
B. Micrococcus, Mycobacterium, Brucella
C. Streptococcus, Pasteurella, Haemophilus
D. Escherichia, Salmonella, Actinobacullus
B. Micrococcus, Mycobacterium, Brucella
SPECIFIC BACTERIOLOGY
- Which bacteria gain toxin production by phage conversion?
A. bacillusanthracis,clostridiumtetani
B. staphylococcusaureus,listeriamonocytogenes
C. corynebacterium diphtheria, streptococcus
D. every mentioned
C. corynebacterium diphtheria, streptococcus
SPECIFIC BACTERIOLOGY
- Causative agent of strangles
A. Streptococcus equi subsp. Equi
B. Streptococcus equi subsp. Zooepidemicus
C. Burkholderia mallei
D. Corynebacterium pseudotuberculosis biotype NO3- positive
A. Streptococcus equi subsp. Equi
SPECIFIC BACTERIOLOGY
Streptococcus
- What are the virulence factors of streptococci?
A. capsule, certain surface proteins
B. toxins, haemolysins, extracellular enzymes
C. both A and B
D. neither
C. both A and B
SPECIFIC BACTERIOLOGY
Streptococcus
- In general, Streptococci are causing
A. alphahaemolysis
B. Betahaemolysis
C. Alpha or beta haemolysis
D. No haemolysis
C. Alpha or beta haemolysis
SPECIFIC BACTERIOLOGY
- Can cause mastitis in cattle
A. staphylococcus aureus
B. streptococcus uberis, streptococcus dysgalactiae, streptococcus agalacticae
C.escheridae coli
D. all of them
D. all of them
SPECIFIC BACTERIOLOGY
Streptococcus
- Which species NOT belongs the group of oral streptococci?
A. Streptococcus salivarius
B. Streptococcus sanguis
C. Streptococcus mutans
D. Streptococcus pyogens
D. Streptococcus pyogens
SPECIFIC BACTERIOLOGY
Enterococcus
- Habitat of enterococci
A. normal intestinal flora
B. soil, natural waters
C. both
D. neither
A. normal intestinal flora
SPECIFIC BACTERIOLOGY
- Not belongs to the group of anaerobic cocci
A. Ruminococcus
B. Enterococcus
C. Peptococcus
D. Sarcina
B. Enterococcus
SPECIFIC BACTERIOLOGY
Enterococcus
- Rarely Enterococci can cause
A. Endocarditis
B. Arthritis
C. Abscesses
D. All of them
D. All of them
SPECIFIC BACTERIOLOGY
Lactobacillus
- NOT true about the habitat of lactobacilli. They can be present….
A. on mucosal surfaces, in intestine
B. in mammary gland
C. in food, feed
D. in the normal intestinal flora
B. in mammary gland
SPECIFIC BACTERIOLOGY
Lactobacilus
- Utilisation of Lactobacillus species:
A. as probiotics, in silage making by the dairy industry as well
B. used in silage making and by the dairy industry, but because of the active fermentation NOT as probiotics
C. as probiotics, but because of the active fermentation NOT used in silage making and by the dairy industry
D. they cannot be utilised practically, because they produce to much acids, and sink pH (even under pH4) dramatically
A. as probiotics, in silage making by the dairy industry as well
SPECIFIC BACTERIOLOGY
Lactobacilus
- NOT true about the habitat of lactobacilli. they can be present…
A. on mucosal surfaces, in intestine
B. in mammary gland
C. in food, feed
D. in the normal intestinal flora
B. in mammary gland
SPECIFIC BACTERIOLOGY
- Which bacterium demands Paraamino-benzoic acid?
A. Trueperella pyogenes
B. Erysipelothrix rhusiopathiae
C. Taylorella equigenitalis
D. Mycoplasma bovis
B. Erysipelothrix rhusiopathiae
SPECIFIC BACTERIOLOGY
- Which bacterium demands paraamino-benzoic acid?
A. Trueperella pyogenes
B. Erysipelothrix rhusiopathiae
C. Taylorella equigenitalis
D. Mycoplasma bovis
B. Erysipelothrix rhusiopathiae
SPECIFIC BACTERIOLOGY
Erysipelothrix
- Morphology of S type Erysipelothrix strains
A. Gram+,slender, flexible rods
B. Gram+, large,wide and longrods
C. Gram +, short but wide rod
D. Gram +, coccoid rods
A. Gram+,slender, flexible rods
SPECIFIC BACTERIOLOGY
- Causative agent of diamond skin disease
A. Staphylococcus hyicus
B. Streptococcus suis
C. Erysipelothrix rhusiopathiae
D. Salmonella choleraesuis
C. Erysipelothrix rhusiopathiae
SPECIFIC BACTERIOLOGY
- Pathogenicity of Erysipelothrix rhusiopathiae in humans
A. Humansarenotsusceptible
B. Humanerysipelas
C. Erysipeloid
D. Gas-gangrene
C. Erysipeloid
SPECIFIC BACTERIOLOGY
Listeria
- Pathogenicity of Listeria in sheep
A. Mainly rumen-atony, lactacidaemia
B. Mainly encephalitis, abortions
C. Mainly septicaemia, arthritis
D. Mainly upper respiratory symptoms, pneumonia
B. Mainly encephalitis, abortions
SPECIFIC BACTERIOLOGY
Listeria
- Habitat of Listeria species
A. Silage, plants
B. Soil, waste waters
C. Foods
D. All of them
D. All of them
SPECIFIC BACTERIOLOGY
Listeria
- Pathogenicity of Listeria in cattle
A. mainly rumen-atony, lactacidaemia
B. Mainly abortion, encephalitis
C. Mainly hepatitis, central neural symptoms
D. Mainly upper respiratory symptoms, pneumonia
B. Mainly abortion, encephalitis