D311 Microbiology WGU OA Questions
With Answer 2025.
, What is the significance of microorganisms containing a thick coat of peptldogiywn within the cell wall?
- ANSWER- Microorganisms containing a thick coat of peptidoglycan within the cell wall are typically
classified as gram-positive bacteria.
Why are viruses considered aceilular? - ANSWER- They cannot reproduce without a host.
What is the defining characteristic of eukaryotes? - ANSWER- They have a nucleus.
Which microorganism can cause vaginal yeast Infections and oral thrush? - ANSWER- Fungi
Why can It be difficult to determine the etiologic agent of a disease? - ANSWER- Some signs and
symptoms can be caused by many different etiologic agents.
What kind of staining technique Is the acid-fast stain? - ANSWER-
A doctor prescribed antibiotics for a patient complaining of runny nose. fever. and aches and pains.
Which type of infection did the doctor suspect? - ANSWER- The doctor likely suspected a viral
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? - ANSWER-
Antifungals
Which structure promotes motility in Proteus. Shigelia. and Salmonella species. all of which can cause
serious disease in humans? - ANSWER- Presence of flagella
Which bacterial virulence factor allows a strain to resist phagocytosis, increasing the organism's
virulence? - ANSWER- Capsule production
Why is treating Haemophilus influenzae difficult? - ANSWER- The capsule is antiphagocytic.
How do pili aid pathogens in causing disease? - ANSWER- They cause pathogens to adhere to host
cells.
Which virulence factor allows pathogens to penetrate the dermis and invade the body? - ANSWER-
Bacterial enzymes
With Answer 2025.
, What is the significance of microorganisms containing a thick coat of peptldogiywn within the cell wall?
- ANSWER- Microorganisms containing a thick coat of peptidoglycan within the cell wall are typically
classified as gram-positive bacteria.
Why are viruses considered aceilular? - ANSWER- They cannot reproduce without a host.
What is the defining characteristic of eukaryotes? - ANSWER- They have a nucleus.
Which microorganism can cause vaginal yeast Infections and oral thrush? - ANSWER- Fungi
Why can It be difficult to determine the etiologic agent of a disease? - ANSWER- Some signs and
symptoms can be caused by many different etiologic agents.
What kind of staining technique Is the acid-fast stain? - ANSWER-
A doctor prescribed antibiotics for a patient complaining of runny nose. fever. and aches and pains.
Which type of infection did the doctor suspect? - ANSWER- The doctor likely suspected a viral
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? - ANSWER-
Antifungals
Which structure promotes motility in Proteus. Shigelia. and Salmonella species. all of which can cause
serious disease in humans? - ANSWER- Presence of flagella
Which bacterial virulence factor allows a strain to resist phagocytosis, increasing the organism's
virulence? - ANSWER- Capsule production
Why is treating Haemophilus influenzae difficult? - ANSWER- The capsule is antiphagocytic.
How do pili aid pathogens in causing disease? - ANSWER- They cause pathogens to adhere to host
cells.
Which virulence factor allows pathogens to penetrate the dermis and invade the body? - ANSWER-
Bacterial enzymes
