D311:MICROBIOLOGY WGU OA EXAM
WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2025 ALREADY GRADED A+
Which microorganisms produce dermatophytes that can cause skin infections,
such as athlete's foot and ringworm?
Fungi
Which pair of enzymes are produced by some bacteria that cause the clotting of
blood to protect the bacteria in the bloodstream, then a digestion of the clots to
allow the bacteria to spread?
Coagulase and kinase
What type of microbe is used to deliver gene therapies to human cells?
Viruses
A dental hygienist nicked the gum of the patient during a routine cleaning. A mild
infection of the gum was followed 10 days later with acute bacterial endocarditis.
Which type of infection caused the endocarditis?
Focal Infection
, An infected individual riding in a subway car coughs for a few minutes, then
leaves. An individual standing at the opposite end of the car one hour after the
infected individual left develops symptoms two days later. How was this pathogen
transmitted?
Airborne contact
Why can It be difficult to determine the etiologic agent of a disease?
Some signs and symptoms can be caused by many different etiologic agents.
What kind of staining technique Is the acid-fast stain?
Differential Stain
A doctor prescribed antibiotics for a patient complaining of runny nose. fever. and
aches and pains. Which type of infection did the doctor suspect?
The doctor likely suspected a bacterial infection because antibiotics are not
effective against viral infections.
A healthcare professional is treating a patient who developed a yeast infection
after taking antibiotics. What type of medication should be prescribed to this
patient?
Antifungals
Which structure promotes motility in Proteus. Shigelia. and Salmonella species. all
of which can cause serious disease in humans?
Presence of flagella
Which bacterial virulence factor allows a strain to resist phagocytosis, increasing
the organism's virulence?
Capsule production
Why is treating Haemophilus influenzae difficult?
The capsule is antiphagocytic.
WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2025 ALREADY GRADED A+
Which microorganisms produce dermatophytes that can cause skin infections,
such as athlete's foot and ringworm?
Fungi
Which pair of enzymes are produced by some bacteria that cause the clotting of
blood to protect the bacteria in the bloodstream, then a digestion of the clots to
allow the bacteria to spread?
Coagulase and kinase
What type of microbe is used to deliver gene therapies to human cells?
Viruses
A dental hygienist nicked the gum of the patient during a routine cleaning. A mild
infection of the gum was followed 10 days later with acute bacterial endocarditis.
Which type of infection caused the endocarditis?
Focal Infection
, An infected individual riding in a subway car coughs for a few minutes, then
leaves. An individual standing at the opposite end of the car one hour after the
infected individual left develops symptoms two days later. How was this pathogen
transmitted?
Airborne contact
Why can It be difficult to determine the etiologic agent of a disease?
Some signs and symptoms can be caused by many different etiologic agents.
What kind of staining technique Is the acid-fast stain?
Differential Stain
A doctor prescribed antibiotics for a patient complaining of runny nose. fever. and
aches and pains. Which type of infection did the doctor suspect?
The doctor likely suspected a bacterial infection because antibiotics are not
effective against viral infections.
A healthcare professional is treating a patient who developed a yeast infection
after taking antibiotics. What type of medication should be prescribed to this
patient?
Antifungals
Which structure promotes motility in Proteus. Shigelia. and Salmonella species. all
of which can cause serious disease in humans?
Presence of flagella
Which bacterial virulence factor allows a strain to resist phagocytosis, increasing
the organism's virulence?
Capsule production
Why is treating Haemophilus influenzae difficult?
The capsule is antiphagocytic.
