Q. What is the function of the bacterial cell wall?
-
A.
Energy production
-
B.
Protection and shape
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C.
DNA replication
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D.
Protein synthesis
Solution
The bacterial cell wall provides protection and maintains the shape of the cell.
Correct Answer:
B
— Protection and shape
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Q. What is the primary mode of transmission for Streptococcus pneumoniae?
-
A.
Airborne droplets
-
B.
Direct contact
-
C.
Vector-borne
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D.
Fecal-oral
Solution
Streptococcus pneumoniae is primarily transmitted through airborne droplets.
Correct Answer:
A
— Airborne droplets
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Q. What is the primary shape of Streptococcus bacteria?
-
A.
Cocci
-
B.
Bacilli
-
C.
Spirilla
-
D.
Vibrio
Solution
Streptococcus bacteria are spherical in shape, classified as cocci.
Correct Answer:
A
— Cocci
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Q. What is the role of plasmids in bacteria?
-
A.
Energy production
-
B.
Antibiotic resistance
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C.
Cell division
-
D.
Nutrient absorption
Solution
Plasmids often carry genes that confer antibiotic resistance to bacteria.
Correct Answer:
B
— Antibiotic resistance
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Q. What type of bacteria are known to thrive in extreme environments?
-
A.
Mesophiles
-
B.
Psychrophiles
-
C.
Thermophiles
-
D.
Halophiles
Solution
Thermophiles are bacteria that thrive in high-temperature environments.
Correct Answer:
C
— Thermophiles
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Q. Which bacteria is commonly associated with food poisoning from undercooked poultry?
-
A.
Listeria monocytogenes
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B.
Clostridium botulinum
-
C.
Salmonella enterica
-
D.
Campylobacter jejuni
Solution
Salmonella enterica is commonly associated with food poisoning from undercooked poultry.
Correct Answer:
C
— Salmonella enterica
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Q. Which of the following bacteria is known for causing tuberculosis?
-
A.
Escherichia coli
-
B.
Mycobacterium tuberculosis
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C.
Staphylococcus aureus
-
D.
Salmonella enterica
Solution
Mycobacterium tuberculosis is the bacterium that causes tuberculosis.
Correct Answer:
B
— Mycobacterium tuberculosis
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Q. Which of the following bacteria is known for forming endospores?
-
A.
Bacillus anthracis
-
B.
Escherichia coli
-
C.
Neisseria gonorrhoeae
-
D.
Streptococcus pyogenes
Solution
Bacillus anthracis is known for forming endospores, which help it survive in harsh conditions.
Correct Answer:
A
— Bacillus anthracis
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Q. Which of the following is a common method for identifying bacteria in a laboratory?
-
A.
PCR
-
B.
X-ray
-
C.
MRI
-
D.
Ultrasound
Solution
Polymerase Chain Reaction (PCR) is a common method for identifying bacteria.
Correct Answer:
A
— PCR
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