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AAB MT Microbiology Exam Questions and Answers 100% Pass
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AAB MT Microbiology Exam Questions and Answers 100% Pass What term describes the morphology of organisms that vary in shape and size? - ANSWER-Pleomorphic Capsules are the basis of which test? - ANSWER-Serotyping A mucoid colony on blood agar medium indicates that which of the following chara...

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  • November 18, 2024
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  • 2024/2025
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AAB MT Microbiology Exam
Questions and Answers 100% Pass

What term describes the morphology of organisms that vary in shape and size? -

ANSWER✔✔-Pleomorphic


Capsules are the basis of which test? - ANSWER✔✔-Serotyping


A mucoid colony on blood agar medium indicates that which of the following

characteristics may be present? - ANSWER✔✔-Organism has a capsule.


What are dark staining granules called? - ANSWER✔✔-Metachromatic


Which of the following 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 which phase? - ANSWER✔✔-Stationary phase


Which of the following genera of bacteria form spores? - ANSWER✔✔-Bacillus and

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



Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 1/25

,What is the temperature at which bacteria grow best known as? - ANSWER✔✔-

Optimum


On blood agar 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 hemolysis


What is the most effective method of sterilization? - ANSWER✔✔-Autoclaving


Which of the following 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


Which one of the following disinfectants is the most effective germicide against

bacteria, spores, tubercle bacilli, fungi, and viruses? - ANSWER✔✔-Chlorine


What is a term that 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


Acid-fast bacteria appear what color microscopically? - ANSWER✔✔-Red


Acid-fast organisms in tissue are best stained by which of the following methods? -

ANSWER✔✔-Kinyoun



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, Which of the following should be used to remove antimicrobials before culturing? -

ANSWER✔✔-Antimicrobial removal device


Which statement concerning sodium polyanethol sulfonate (SPS) is NOT true? -

ANSWER✔✔-Activates some antimicrobials


What are some functions of sodium polyanethol sulfonate (SPS)? - ANSWER✔✔-

Prevents blood from clotting, prevents phagocytosis, and neutralizes the bactericidal

effect of human serum.


What is the most abundant normal flora in throat cultures? - ANSWER✔✔-Alpha-

hemolytic streptococci


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.


What is the most common pathogen is throat cultures? - ANSWER✔✔-Streptococcus

pyogenes


Nasopharangeal swabs are recommended for the detection of which carriers? -

ANSWER✔✔-H. influenzae, N. meningitidis, and B. pertussis


Why is a first morning urine specimen preferred for urine cultures? - ANSWER✔✔-

Specimen is more concentrated.




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