D311: Microbiology WGU OA latest 2026
graded A
What is the significance of microorganisms containing a thick coat of peptidoglycan within the cell wall?
Microorganisms containing a thick coat of peptidoglycan within the cell wall are typically classified as
gram-positive bacteria.
Why are viruses considered aceilular?
They cannot reproduce without a host.
What is the defining characteristic of eukaryotes?
They have a nucleus.
Which microorganism can cause vaginal yeast Infections and oral thrush?
Fungi
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?
, D311: Microbiology WGU OA latest 2026
graded A
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.
How do pili aid pathogens in causing disease?
They cause pathogens to adhere to host cells.
Which virulence factor allows pathogens to penetrate the dermis and invade the body?
graded A
What is the significance of microorganisms containing a thick coat of peptidoglycan within the cell wall?
Microorganisms containing a thick coat of peptidoglycan within the cell wall are typically classified as
gram-positive bacteria.
Why are viruses considered aceilular?
They cannot reproduce without a host.
What is the defining characteristic of eukaryotes?
They have a nucleus.
Which microorganism can cause vaginal yeast Infections and oral thrush?
Fungi
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?
, D311: Microbiology WGU OA latest 2026
graded A
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.
How do pili aid pathogens in causing disease?
They cause pathogens to adhere to host cells.
Which virulence factor allows pathogens to penetrate the dermis and invade the body?
