1. Which of the following is a gram-positive bacterium?
a) E. coli
b) Staphylococcus aureus
c) Pseudomonas aeruginosa
d) Klebsiella pneumoniae
Answer: b) Staphylococcus aureus
2. Which type of microorganism is most likely to cause fungal infections in humans?
a) Bacteria
b) Virus
c) Fungi
d) Protozoa
Answer: c) Fungi
3. What is the term for microorganisms that are normally present on the body and do not cause disease?
a) Normal flora
b) Pathogenic flora
c) Infectious agents
d) Multidrug-resistant bacteria
Answer: a) Normal flora
4. Which of the following is an example of a multidrug-resistant bacterium?
a) MRSA
b) E. coli
c) Staphylococcus epidermidis
d) Klebsiella pneumoniae
Answer: a) MRSA
5. What is the process by which microorganisms enter the body called?
a) Inoculation
b) Sterilization
c) Disinfection
d) Autoclaving
Answer: a) Inoculation
6. Which type of microorganism is most likely to cause viral infections in humans?
a) Bacteria
b) Virus
c) Fungi
d) Protozoa
Answer: b) Virus
7. What is the term for microorganisms that cause disease in humans?
a) Pathogenic
b) Normal flora
c) Infectious agents
d) Multidrug-resistant bacteria
Answer: a) Pathogenic
8. Which of the following is a gram-negative bacterium?
a) Staphylococcus aureus
b) E. coli
c) Pseudomonas aeruginosa
d) Klebsiella pneumoniae
Answer: b) E. coli
9. What is the process of destroying all microorganisms called?
a) Sterilization
b) Disinfection
c) Autoclaving
d) Decontamination
Answer: a) Sterilization
10. Which type of microorganism is most likely to cause protozoal infections in humans?
a) Bacteria
b) Virus
c) Fungi
d) Protozoa
Answer: d) Protozoa
