D311 MICROBIOLOGY WGU OA TEST BANK
QUESTIONS WITH VERIFIED ANSWERS
FULL REVIEW
●● Why are viruses considered acellular
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: 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?
Answer: A 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?
Answer: Antifungal
●● Which structure promotes motility in Proteus, Shigella, and
Salmonella species. all of which can cause serious disease in humans?
Answer: Presence of fagella
●● Which bacterial virulence factor allows a strain to resist
phagocytosis, increasing the organism's virulence?
Answer: Capsule production
●● Why is treating Haemophiles influenzae difficult?
Answer: The capsule is antiphagocytic
●● How do pili aid pathogens in causing disease?
Answer: They cause pathogens to adhere to host cells.
QUESTIONS WITH VERIFIED ANSWERS
FULL REVIEW
●● Why are viruses considered acellular
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: 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?
Answer: A 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?
Answer: Antifungal
●● Which structure promotes motility in Proteus, Shigella, and
Salmonella species. all of which can cause serious disease in humans?
Answer: Presence of fagella
●● Which bacterial virulence factor allows a strain to resist
phagocytosis, increasing the organism's virulence?
Answer: Capsule production
●● Why is treating Haemophiles influenzae difficult?
Answer: The capsule is antiphagocytic
●● How do pili aid pathogens in causing disease?
Answer: They cause pathogens to adhere to host cells.
