#1
Which of the following is a prokaryotic organism?
Amoeba
E. coli
Paramecium
Fungi
#2
What is the function of an autoclave in a microbiology laboratory?
To sterilize equipment and media
To measure pH
To cultivate bacteria
To visualize bacteria
#3
What is the purpose of a streak plate in microbiology?
To culture bacteria
To perform antibiotic sensitivity testing
To count bacterial colonies
To visualize viruses
#4
Which of the following is an example of a Gram-negative bacterium?
Staphylococcus aureus
Escherichia coli
Bacillus subtilis
Clostridium difficile
#5
What is the function of a microscope's objective lens?
To adjust the focus
To magnify the image
To control the light intensity
To rotate the lenses
#6
Which staining technique is commonly used to visualize bacterial spores?
Gram staining
Acid-fast staining
Endospore staining
Simple staining
#7
What is the purpose of the oil immersion technique in microscopy?
To increase resolution
To adjust the brightness
To decrease magnification
To visualize fluorescence
#8
Which staining technique is used to differentiate acid-fast bacteria from non-acid-fast bacteria?
Gram staining
Ziehl-Neelsen staining
Endospore staining
Simple staining
#9
Which of the following is a characteristic of archaea?
Presence of peptidoglycan in cell walls
Lack of a nucleus
Commonly found in extreme environments
Unicellular structure
#10
What is the purpose of a Petri dish in a microbiology laboratory?
To culture bacteria
To measure pH
To heat samples
To store chemicals
#11
Which method is used for counting bacterial colonies on agar plates?
Serial dilution
Streak plate method
Hemocytometer counting
Agar diffusion method
#12
Which microscope is commonly used for observing live cells in real-time?
Transmission electron microscope (TEM)
Scanning electron microscope (SEM)
Fluorescence microscope
Atomic force microscope (AFM)
#13
What is the purpose of a laminar flow hood in a microbiology laboratory?
To culture bacteria
To provide a sterile environment
To measure pH
To visualize bacteria
#14
Which method is used for the identification of bacteria based on their biochemical characteristics?
Polymerase chain reaction (PCR)
Gram staining
API test
Serological testing