BACTERIOLOGY COMPRE QUESTIONS AND ANSWERS ALREADY PASSED
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Course
BACTERIOLOGY COMPRE
Institution
BACTERIOLOGY COMPRE
BACTERIOLOGY COMPRE QUESTIONS
AND ANSWERS ALREADY PASSED
What is the main characteristic of Gram-negative bacteria?
They have a thin peptidoglycan layer and an outer lipid membrane
They lack a cell wall
They are usually aerobic organisms
They stain purple in a Gram stain
Which bacterial ...
BACTERIOLOGY COMPRE QUESTIONS
AND ANSWERS ALREADY PASSED
What is the main characteristic of Gram-negative bacteria?
✔✔They have a thin peptidoglycan layer and an outer lipid membrane
They lack a cell wall
They are usually aerobic organisms
They stain purple in a Gram stain
Which bacterial genus is responsible for causing tuberculosis?
Escherichia coli
✔✔Mycobacterium
Streptococcus
Clostridium
Which of the following bacteria is known for its ability to form spores?
Salmonella
✔✔Clostridium
Neisseria
1
,Staphylococcus
What is the primary component of the bacterial cell wall in Gram-positive bacteria?
Lipopolysaccharides
Lipids
✔✔Peptidoglycan
Phospholipids
Which method is commonly used to identify bacterial species in a clinical laboratory?
Polymerase chain reaction (PCR)
✔✔Gram staining
Ultraviolet fluorescence
Fungal culture
Which bacterium is a common cause of urinary tract infections (UTIs)?
Pseudomonas aeruginosa
✔✔Escherichia coli
Salmonella typhi
2
,Clostridium botulinum
Which of the following antibiotics is effective against Gram-negative bacteria?
Penicillin
Tetracycline
✔✔Gentamicin
Vancomycin
What type of bacteria causes the disease cholera?
Vibrio cholerae
✔✔Vibrio cholerae
Listeria monocytogenes
Bacillus anthracis
Which bacteria is responsible for causing diphtheria?
Clostridium difficile
✔✔Corynebacterium diphtheriae
Mycobacterium leprae
3
, Staphylococcus aureus
What is the mechanism of action for penicillin in inhibiting bacterial growth?
✔✔It inhibits the synthesis of peptidoglycan in the bacterial cell wall
It inhibits protein synthesis
It disrupts the bacterial DNA replication
It inhibits folic acid synthesis
Which bacterium is associated with food poisoning caused by improperly stored food?
Escherichia coli
✔✔Staphylococcus aureus
Klebsiella pneumoniae
Mycobacterium tuberculosis
What is the purpose of a bacterial endospore?
To allow bacteria to divide
✔✔To protect the bacteria during harsh environmental conditions
To enable bacteria to move
4
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