- A. Decease in virulence
- B. Loss of infectivity
- C. Inability to spread through tissue
- D. increase in invasiveness
Bacteriology
Bacteriology is the branch and specialty of biology that studies the morphology, ecology, genetics and biochemistry of bacteria as well as many other aspects related to them. This subdivision of microbiology involves the identification, classification, and characterization of bacterial species.
Bacteriology (MCQs)
Bacteriology (MCQs)
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Loss of capsule in bacteria is generally associated with______________?
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Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?
- A. Capsule
- B. Flagella
- C. Pili
- D. Mesosomes
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Neurotoxin of tetanus acts on______________?
- A. Synapse
- B. Muscle
- C. Brain
- D. Spinal card
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Encapsulation in bacteria helps in__________________?
- A. Spore formation
- B. Decreased virulence
- C. Prevent their phagocytosis
- D. Oxygen effect
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Organism most frequently associated with urinary tract infections is_________________?
- A. Neisseria gonorrhea
- B. Escherichia coli
- C. T-strain mycoplasma
- D. Streptococcus fecalis
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Subacute bacterial endocarditis is caused by_____________?
- A. Streptococcus viridans
- B. Haemolytic streptococci
- C. Staphylococcus aureus
- D. Nisseria
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Growth factor needed for Salmonella_________________?
- A. Tryptophan
- B. Niacin
- C. B-12
- D. Citrate
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Which of the following are non-spore forming anaerobic bacteria that asume major significance in disease processes________________?
- A. Bacteroides fragilis
- B. Fusobacterium nucleatum
- C. Peptostreptococcus anaerobius
- D. Actinomyces Israeli
- E. All of the above
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What is the transport medium for cholera___________________?
- A. Tellurite Medium
- B. Cary Blair Medium
- C. Venkatraman – Ramakrishnan Medium
- D. B & C
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The diagnosis of gonorrhea is established by_____________?
- A. Compliment fixation tests
- B. Pili agglutination tests
- C. Haemagglutination tests
- D. All of the above tests