WGU C453 CLINICAL MICROBIOLOGY EXAM GUIDE/
COMPREHENSIVE STUDY GUIDE 2025/2026/EXPERT
VERIFIED ACTUAL COMPLETE REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
GUARANTEED PASS!!! NEWEST UPDATE.
Negative sense single-stranded RNA viruses - ANSWER-other
RNA genomes that have to be converted into proper form to be
made into protiens
Which disease affecting females has symptoms that include
intense itching and a copious white discharge? - ANSWER-
Trichomoniasis
Which disease is caused by Haemophilus ducreyi? - ANSWER-
Chancroid
Which lower respiratory disease is spread by soil and water? –
ANSWER-Legionnaires' disease
Which lower respiratory pathogen is characterized by mycolic
acid in its cell membrane and growth within macrophages and
can be acquired by inhaling aerosolized drops? - ANSWER-
Mycobacterium tuberculosis
,Which helminthic disease is passed when a mosquito bites a
host, allowing worm larvae to enter the blood, and can lead to
elephantiasis of the limbs and scrotum? - ANSWER-Filariasis
Which protozoan systemic disease is characterized by mild
lymph node inflammation, can lead to congenital defects in the
fetus, and is acquired through contact with domestic cats? -
ANSWER-Toxoplasmosis
Which preventative treatment should be used to protect against
human papillomavirus (HPV) strains 16 and 18? - ANSWER-
Gardasil
Which dental disease is characterized by the chemical removal
of enamel and can eventually cause abscesses in the bone of
supporting teeth? – ANSWER-Dental caries
What is a symptom of mumps? - ANSWER-Swelling of the
salivary glands
Which nerve disease presents with high fever, back pain,
muscle spasms, and sometimes paralysis and is transmitted by
the fecal-oral route? – ANSWER-Poliomyelitis
,How does isoniazid exert its action? - ANSWER-It interferes
with the synthesis of mycolic acid.
How does chloramphenicol exert its action? - ANSWER-It
inhibits protein synthesis.
What is the target of the antiviral drug azidothymidine, or AZT?
- ANSWER-Viral reverse transcriptase
What is the target of the antihelminthic agent niclosamide? –
ANSWER-Carbohydrate metabolism
Which mechanism would result in resistance to tetracyclines? –
ANSWER-Alteration of membrane permeability
Which mechanism of resistance would result in destroying
penicillins? - ANSWER-Development of beta-lactamase
The doctor prescribes amoxicillin as well as clavulanic acid.
Why might this course of treatment be successful? - ANSWER-
Clavulanic acid acts synergistically with amoxicillin by binding
to an enzyme that can inactivate amoxicillin.
, Which process uses an autoclave to remove all
microorganisms from medical instruments? - ANSWER-
Sterilization
.
Which treatment is used to decrease microbial counts on eating
and drinking utensils in restaurants? - ANSWER-Sanitization
Which method describes the removal or destruction of all
microorganisms in or on an object? - ANSWER-Sterilization
Which antimicrobial agent mainly inhibits organism growth? –
ANSWER-Bacteriostatic
Which two substances are found in some food products as
preservatives? - ANSWER-Halogens and phenols
Which substance can be effective in inactivating viruses? -
ANSWER-
Detergents
Which type of microorganism causes ringworm? - ANSWER-
Fungus
COMPREHENSIVE STUDY GUIDE 2025/2026/EXPERT
VERIFIED ACTUAL COMPLETE REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
GUARANTEED PASS!!! NEWEST UPDATE.
Negative sense single-stranded RNA viruses - ANSWER-other
RNA genomes that have to be converted into proper form to be
made into protiens
Which disease affecting females has symptoms that include
intense itching and a copious white discharge? - ANSWER-
Trichomoniasis
Which disease is caused by Haemophilus ducreyi? - ANSWER-
Chancroid
Which lower respiratory disease is spread by soil and water? –
ANSWER-Legionnaires' disease
Which lower respiratory pathogen is characterized by mycolic
acid in its cell membrane and growth within macrophages and
can be acquired by inhaling aerosolized drops? - ANSWER-
Mycobacterium tuberculosis
,Which helminthic disease is passed when a mosquito bites a
host, allowing worm larvae to enter the blood, and can lead to
elephantiasis of the limbs and scrotum? - ANSWER-Filariasis
Which protozoan systemic disease is characterized by mild
lymph node inflammation, can lead to congenital defects in the
fetus, and is acquired through contact with domestic cats? -
ANSWER-Toxoplasmosis
Which preventative treatment should be used to protect against
human papillomavirus (HPV) strains 16 and 18? - ANSWER-
Gardasil
Which dental disease is characterized by the chemical removal
of enamel and can eventually cause abscesses in the bone of
supporting teeth? – ANSWER-Dental caries
What is a symptom of mumps? - ANSWER-Swelling of the
salivary glands
Which nerve disease presents with high fever, back pain,
muscle spasms, and sometimes paralysis and is transmitted by
the fecal-oral route? – ANSWER-Poliomyelitis
,How does isoniazid exert its action? - ANSWER-It interferes
with the synthesis of mycolic acid.
How does chloramphenicol exert its action? - ANSWER-It
inhibits protein synthesis.
What is the target of the antiviral drug azidothymidine, or AZT?
- ANSWER-Viral reverse transcriptase
What is the target of the antihelminthic agent niclosamide? –
ANSWER-Carbohydrate metabolism
Which mechanism would result in resistance to tetracyclines? –
ANSWER-Alteration of membrane permeability
Which mechanism of resistance would result in destroying
penicillins? - ANSWER-Development of beta-lactamase
The doctor prescribes amoxicillin as well as clavulanic acid.
Why might this course of treatment be successful? - ANSWER-
Clavulanic acid acts synergistically with amoxicillin by binding
to an enzyme that can inactivate amoxicillin.
, Which process uses an autoclave to remove all
microorganisms from medical instruments? - ANSWER-
Sterilization
.
Which treatment is used to decrease microbial counts on eating
and drinking utensils in restaurants? - ANSWER-Sanitization
Which method describes the removal or destruction of all
microorganisms in or on an object? - ANSWER-Sterilization
Which antimicrobial agent mainly inhibits organism growth? –
ANSWER-Bacteriostatic
Which two substances are found in some food products as
preservatives? - ANSWER-Halogens and phenols
Which substance can be effective in inactivating viruses? -
ANSWER-
Detergents
Which type of microorganism causes ringworm? - ANSWER-
Fungus
