WGU D311 NURS 1010 Microbiology with Lab OA READINESS EXAM GUIDE Q & S 2025/2026

1. Multiple Choice: Which of the following microorganisms is
most likely to be found in a hospital setting and is a
common cause of nosocomial infections?
 A. Escherichia coli
 B. Staphylococcus aureus
 C. Pseudomonas aeruginosa
 D. Bacillus cereus
 Correct Answer: B. Staphylococcus aureus
 Rationale: Staphylococcus aureus is known for its ability
to survive on various surfaces, making it a significant cause
of hospital-acquired infections.
2. Fill-in-the-Blank: The process by which bacteria develop
resistance to antibiotics is known as _______.
 Correct Answer: Horizontal gene transfer
 Rationale: Horizontal gene transfer allows bacteria to
acquire and spread genetic material responsible for
antibiotic resistance.
3. True/False: Endospores are a reproductive structure
formed by bacteria.
 Correct Answer: False
 Rationale: Endospores are not reproductive structures;
they are survival structures that allow bacteria to withstand
unfavorable conditions.
4. Multiple Response: Select all the factors that contribute
to the virulence of a pathogen:
 A. Toxin production
 B. Adhesion capability
 C. Immune system evasion
 D. Rapid reproduction rate