MLT – MICROBIOLOGY EXAM QUESTIONS WITH
ANSWERS 100% VERIFIED/DETAILED ALL
ANSWERS GET IT CORRECT 2024/2025 LATEST
UPDATED BEST RATED A+ FOR PASS
What term describes the morphology of organisms that vary in size and shape?
- CORRECT ANSWERS pleomorphic
Capsules are the basis of which test? - CORRECT ANSWERS serotyping
A mucoid colony on blood agar medium indicates that which characteristic may
be present? - CORRECT ANSWERS organism has a capsule
What are dark staining granules called? - CORRECT ANSWERS metachromatic
Which organisms are non motile? - CORRECT ANSWERS Shigella and Klebsiella
In the bacterial growth cycle, growth ceases because nutrients are exhausted
or toxic metabolic products have accumulated in what phase? - CORRECT
ANSWERS stationary phase
What genera of bacteria form spores? - CORRECT ANSWERS Bacillus,
Clostridium
What term is used to describe bacteria that grow in the absence of
atmospheric oxygen and obtain oxygen from oxygen-containing compounds? -
CORRECT ANSWERS anaerobes
What is the temperature at which bacteria grow best known as? - CORRECT
ANSWERS optium
,MLT – MICROBIOLOGY EXAM QUESTIONS WITH
ANSWERS 100% VERIFIED/DETAILED ALL
ANSWERS GET IT CORRECT 2024/2025 LATEST
UPDATED BEST RATED A+ FOR PASS
On blood sugar plates a small zone of alpha hemolysis surrounded by a zone of
beta hemolysis after refrigeration is known as what type of hemolysis? -
CORRECT ANSWERS alpha-prime
What is the most effective method of sterilization? - CORRECT ANSWERS
autoclaving
What is used for quality control for the dry heat oven? - CORRECT ANSWERS
Bacillus subtilis
Media that cannot be heated can be sterilized by what alternate method? -
CORRECT ANSWERS filtration
What disinfectant is the most effective germicide against bacteria, spores
tubercle bacilli, fungi, and viruses? - CORRECT ANSWERS chlorine bleach
What term describes a process or treatment that renders a medical device,
instrument, or environmental surface safe to handle? - CORRECT ANSWERS
decontamination
What color do Gram-positive bacteria stain? - CORRECT ANSWERS purple/ dark
blue
Acid-fast bacteria appear what color microscopically? - CORRECT ANSWERS red
Acid-fast organisms in tissue are best stained by what method? - CORRECT
ANSWERS Kinyoun
, MLT – MICROBIOLOGY EXAM QUESTIONS WITH
ANSWERS 100% VERIFIED/DETAILED ALL
ANSWERS GET IT CORRECT 2024/2025 LATEST
UPDATED BEST RATED A+ FOR PASS
What should be used to remove antimicrobials before culturing? - CORRECT
ANSWERS antimicrobial removal device
Name some characteristics concerning sodium polyanethol sulfonate (SPS)- -
CORRECT ANSWERS prevents blood from clotting, prevents phagocytosis,
neutralizes the bactericidal effect on human serum
What is the most abundant normal flora in throat culture? - CORRECT
ANSWERS alpha-hemolytic streptococci
What is the most common pathogen in throat cultures? - CORRECT ANSWERS
Streptococcus pyogenes
Why is it recommended to stab the blood agar plate when setting up throat
cultures? - CORRECT ANSWERS some streptococci may not produce beta
hemolysis under aerobic conditions
Nasopharyngeal swabs are recommended for the detection of which carriers -
CORRECT ANSWERS H. influenzae, N. meningitidis, B. pertussis
Why is a first morning urine specimen preferred for urine cultures? - CORRECT
ANSWERS specimen is more concentrated
What indicates vaginal or urethral contamination of urine? - CORRECT
ANSWERS greater than 10 squamous epithelial cells per hpf
ANSWERS 100% VERIFIED/DETAILED ALL
ANSWERS GET IT CORRECT 2024/2025 LATEST
UPDATED BEST RATED A+ FOR PASS
What term describes the morphology of organisms that vary in size and shape?
- CORRECT ANSWERS pleomorphic
Capsules are the basis of which test? - CORRECT ANSWERS serotyping
A mucoid colony on blood agar medium indicates that which characteristic may
be present? - CORRECT ANSWERS organism has a capsule
What are dark staining granules called? - CORRECT ANSWERS metachromatic
Which organisms are non motile? - CORRECT ANSWERS Shigella and Klebsiella
In the bacterial growth cycle, growth ceases because nutrients are exhausted
or toxic metabolic products have accumulated in what phase? - CORRECT
ANSWERS stationary phase
What genera of bacteria form spores? - CORRECT ANSWERS Bacillus,
Clostridium
What term is used to describe bacteria that grow in the absence of
atmospheric oxygen and obtain oxygen from oxygen-containing compounds? -
CORRECT ANSWERS anaerobes
What is the temperature at which bacteria grow best known as? - CORRECT
ANSWERS optium
,MLT – MICROBIOLOGY EXAM QUESTIONS WITH
ANSWERS 100% VERIFIED/DETAILED ALL
ANSWERS GET IT CORRECT 2024/2025 LATEST
UPDATED BEST RATED A+ FOR PASS
On blood sugar plates a small zone of alpha hemolysis surrounded by a zone of
beta hemolysis after refrigeration is known as what type of hemolysis? -
CORRECT ANSWERS alpha-prime
What is the most effective method of sterilization? - CORRECT ANSWERS
autoclaving
What is used for quality control for the dry heat oven? - CORRECT ANSWERS
Bacillus subtilis
Media that cannot be heated can be sterilized by what alternate method? -
CORRECT ANSWERS filtration
What disinfectant is the most effective germicide against bacteria, spores
tubercle bacilli, fungi, and viruses? - CORRECT ANSWERS chlorine bleach
What term describes a process or treatment that renders a medical device,
instrument, or environmental surface safe to handle? - CORRECT ANSWERS
decontamination
What color do Gram-positive bacteria stain? - CORRECT ANSWERS purple/ dark
blue
Acid-fast bacteria appear what color microscopically? - CORRECT ANSWERS red
Acid-fast organisms in tissue are best stained by what method? - CORRECT
ANSWERS Kinyoun
, MLT – MICROBIOLOGY EXAM QUESTIONS WITH
ANSWERS 100% VERIFIED/DETAILED ALL
ANSWERS GET IT CORRECT 2024/2025 LATEST
UPDATED BEST RATED A+ FOR PASS
What should be used to remove antimicrobials before culturing? - CORRECT
ANSWERS antimicrobial removal device
Name some characteristics concerning sodium polyanethol sulfonate (SPS)- -
CORRECT ANSWERS prevents blood from clotting, prevents phagocytosis,
neutralizes the bactericidal effect on human serum
What is the most abundant normal flora in throat culture? - CORRECT
ANSWERS alpha-hemolytic streptococci
What is the most common pathogen in throat cultures? - CORRECT ANSWERS
Streptococcus pyogenes
Why is it recommended to stab the blood agar plate when setting up throat
cultures? - CORRECT ANSWERS some streptococci may not produce beta
hemolysis under aerobic conditions
Nasopharyngeal swabs are recommended for the detection of which carriers -
CORRECT ANSWERS H. influenzae, N. meningitidis, B. pertussis
Why is a first morning urine specimen preferred for urine cultures? - CORRECT
ANSWERS specimen is more concentrated
What indicates vaginal or urethral contamination of urine? - CORRECT
ANSWERS greater than 10 squamous epithelial cells per hpf
