©SOPHIABENNETT
EXAM_SOLUTIONS GUARANTEED SUCCESS 2024/2025 ACADEMIC YEAR
©SOPHIABENNETT 9/7/24 2024/2025
, ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM
MLT – Microbiology Exam Practice
Questions and Answers | 100% Pass
What term describes the morphology of organisms that vary in size and shape? -
Answer✔️✔️-pleomorphic
Capsules are the basis of which test? - Answer✔️✔️-serotyping
A mucoid colony on blood agar medium indicates that which characteristic may be
present? - Answer✔️✔️-organism has a capsule
What are dark staining granules called? - Answer✔️✔️-metachromatic
Which organisms are non motile? - Answer✔️✔️-Shigella and Klebsiella
In the bacterial growth cycle, growth ceases because nutrients are exhausted or toxic
metabolic products have accumulated in what phase? - Answer✔️✔️-stationary phase
What genera of bacteria form spores? - Answer✔️✔️-Bacillus, Clostridium
What term is used to describe bacteria that grow in the absence of atmospheric oxygen
and obtain oxygen from oxygen-containing compounds? - Answer✔️✔️-anaerobes
What is the temperature at which bacteria grow best known as? - Answer✔️✔️-optium
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? - Answer✔️✔️-alpha-
prime
What is the most effective method of sterilization? - Answer✔️✔️-autoclaving
Page | 1
, ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM
What is used for quality control for the dry heat oven? - Answer✔️✔️-Bacillus subtilis
Media that cannot be heated can be sterilized by what alternate method? - Answer✔️✔️-
filtration
What disinfectant is the most effective germicide against bacteria, spores tubercle
bacilli, fungi, and viruses? - Answer✔️✔️-chlorine bleach
What term describes a process or treatment that renders a medical device, instrument,
or environmental surface safe to handle? - Answer✔️✔️-decontamination
What color do Gram-positive bacteria stain? - Answer✔️✔️-purple/ dark blue
Acid-fast bacteria appear what color microscopically? - Answer✔️✔️-red
Acid-fast organisms in tissue are best stained by what method? - Answer✔️✔️-Kinyoun
What should be used to remove antimicrobials before culturing? - Answer✔️✔️-
antimicrobial removal device
Name some characteristics concerning sodium polyanethol sulfonate (SPS)- -
Answer✔️✔️-prevents blood from clotting, prevents phagocytosis, neutralizes the
bactericidal effect on human serum
What is the most abundant normal flora in throat culture? - Answer✔️✔️-alpha-hemolytic
streptococci
What is the most common pathogen in throat cultures? - Answer✔️✔️-Streptococcus
pyogenes
Why is it recommended to stab the blood agar plate when setting up throat cultures? -
Answer✔️✔️-some streptococci may not produce beta hemolysis under aerobic
conditions
Page | 2
EXAM_SOLUTIONS GUARANTEED SUCCESS 2024/2025 ACADEMIC YEAR
©SOPHIABENNETT 9/7/24 2024/2025
, ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM
MLT – Microbiology Exam Practice
Questions and Answers | 100% Pass
What term describes the morphology of organisms that vary in size and shape? -
Answer✔️✔️-pleomorphic
Capsules are the basis of which test? - Answer✔️✔️-serotyping
A mucoid colony on blood agar medium indicates that which characteristic may be
present? - Answer✔️✔️-organism has a capsule
What are dark staining granules called? - Answer✔️✔️-metachromatic
Which organisms are non motile? - Answer✔️✔️-Shigella and Klebsiella
In the bacterial growth cycle, growth ceases because nutrients are exhausted or toxic
metabolic products have accumulated in what phase? - Answer✔️✔️-stationary phase
What genera of bacteria form spores? - Answer✔️✔️-Bacillus, Clostridium
What term is used to describe bacteria that grow in the absence of atmospheric oxygen
and obtain oxygen from oxygen-containing compounds? - Answer✔️✔️-anaerobes
What is the temperature at which bacteria grow best known as? - Answer✔️✔️-optium
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? - Answer✔️✔️-alpha-
prime
What is the most effective method of sterilization? - Answer✔️✔️-autoclaving
Page | 1
, ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM
What is used for quality control for the dry heat oven? - Answer✔️✔️-Bacillus subtilis
Media that cannot be heated can be sterilized by what alternate method? - Answer✔️✔️-
filtration
What disinfectant is the most effective germicide against bacteria, spores tubercle
bacilli, fungi, and viruses? - Answer✔️✔️-chlorine bleach
What term describes a process or treatment that renders a medical device, instrument,
or environmental surface safe to handle? - Answer✔️✔️-decontamination
What color do Gram-positive bacteria stain? - Answer✔️✔️-purple/ dark blue
Acid-fast bacteria appear what color microscopically? - Answer✔️✔️-red
Acid-fast organisms in tissue are best stained by what method? - Answer✔️✔️-Kinyoun
What should be used to remove antimicrobials before culturing? - Answer✔️✔️-
antimicrobial removal device
Name some characteristics concerning sodium polyanethol sulfonate (SPS)- -
Answer✔️✔️-prevents blood from clotting, prevents phagocytosis, neutralizes the
bactericidal effect on human serum
What is the most abundant normal flora in throat culture? - Answer✔️✔️-alpha-hemolytic
streptococci
What is the most common pathogen in throat cultures? - Answer✔️✔️-Streptococcus
pyogenes
Why is it recommended to stab the blood agar plate when setting up throat cultures? -
Answer✔️✔️-some streptococci may not produce beta hemolysis under aerobic
conditions
Page | 2
