NURSING • TESTBANK • PRACTICE QUESTIONS
TESTBANK
Medical Microbiology
& Parasitology
PRACTICE QUESTIONS
Answers shown after each question
© MOh T
Original Educational Practice Questions
For Nursing Students
© MOh T | @moht | Educational Use Only
,Testbank | Medical Microbiology & Parasitology | © MOh T @moht
1. Bacteria are classified as:
A. Prokaryotes (no true nucleus)
B. Eukaryotes with nucleus
C. Viruses only
D. Fungi only
Answer: A
2. Gram-positive bacteria stain:
A. Colorless
B. Purple/blue
C. Pink/red
D. Green
Answer: B
3. Gram-negative bacteria possess:
A. No cell wall
B. Only a capsule
C. Thin peptidoglycan plus outer membrane with LPS
D. Thick peptidoglycan only
Answer: C
4. Endotoxin is primarily:
A. Gram-positive teichoic acid
B. A secreted protein toxin
C. A fungal product
D. LPS from Gram-negative outer membrane
Answer: D
5. Exotoxins are typically:
A. Secreted proteins that can be highly potent
B. Structural LPS components
C. Only lipids
D. Non-antigenic
Answer: A
6. Bacterial capsules mainly help by:
A. Synthesizing antibiotics
B. Resisting phagocytosis and aiding adherence
C. Increasing phagocytosis
D. Providing ATP
Answer: B
7. Endospores allow bacteria to:
A. Swim faster
B. Produce continuous toxin
C. Survive extreme conditions in dormancy
D. Divide faster
Answer: C
8. Obligate aerobes require:
A. Absence of oxygen
B. Only CO2
C. Fermentation only
D. Oxygen for growth
Answer: D
9. Obligate anaerobes are:
A. Inhibited or killed by oxygen
B. Stimulated by oxygen
C. Independent of atmosphere
D. Only skin flora
Answer: A
10. Facultative anaerobes grow:
© MOh T | @moht | Educational Use Only Page 1
, Testbank | Medical Microbiology & Parasitology | © MOh T @moht
A. Only intracellularly
B. With or without oxygen
C. Only anaerobically
D. Only in pure N2
Answer: B
11. Sterilization means:
A. Cleaning visible dirt
B. Soap washing only
C. Destroying all microbial life including spores
D. Reducing microbes to safe levels
Answer: C
12. Disinfection means:
A. Killing all spores on surfaces
B. Sterilizing tissue
C. Hand hygiene alone
D. Reducing pathogens on inanimate objects (spores may survive)
Answer: D
13. Antisepsis refers to:
A. Reducing microbes on living tissue
B. Instrument sterilization
C. Floor cleaning
D. Spore eradication on skin
Answer: A
14. Pasteurization aims to:
A. Kill every spore
B. Reduce pathogens and spoilage organisms without complete sterilization
C. Fully sterilize including spores
D. Only cool liquids
Answer: B
15. Autoclaving uses:
A. UV only
B. Filtration only
C. Moist heat under pressure (e.g. 121°C)
D. Dry heat at 100°C
Answer: C
16. The single most important infection-control measure is:
A. Wearing a gown always
B. Air filtration alone
C. Antibiotics prophylactically for all
D. Hand hygiene
Answer: D
17. Staphylococcus aureus appears as:
A. Gram-positive cocci in clusters
B. Gram-negative rods
C. Acid-fast bacilli
D. Spirochetes
Answer: A
18. MRSA is resistant mainly to:
A. Vancomycin always
B. Many beta-lactams including methicillin/oxacillin
C. All known antibiotics without exception
D. Only topical agents
Answer: B
19. Streptococcus pyogenes (Group A) can cause:
A. Only tetanus
© MOh T | @moht | Educational Use Only Page 2
TESTBANK
Medical Microbiology
& Parasitology
PRACTICE QUESTIONS
Answers shown after each question
© MOh T
Original Educational Practice Questions
For Nursing Students
© MOh T | @moht | Educational Use Only
,Testbank | Medical Microbiology & Parasitology | © MOh T @moht
1. Bacteria are classified as:
A. Prokaryotes (no true nucleus)
B. Eukaryotes with nucleus
C. Viruses only
D. Fungi only
Answer: A
2. Gram-positive bacteria stain:
A. Colorless
B. Purple/blue
C. Pink/red
D. Green
Answer: B
3. Gram-negative bacteria possess:
A. No cell wall
B. Only a capsule
C. Thin peptidoglycan plus outer membrane with LPS
D. Thick peptidoglycan only
Answer: C
4. Endotoxin is primarily:
A. Gram-positive teichoic acid
B. A secreted protein toxin
C. A fungal product
D. LPS from Gram-negative outer membrane
Answer: D
5. Exotoxins are typically:
A. Secreted proteins that can be highly potent
B. Structural LPS components
C. Only lipids
D. Non-antigenic
Answer: A
6. Bacterial capsules mainly help by:
A. Synthesizing antibiotics
B. Resisting phagocytosis and aiding adherence
C. Increasing phagocytosis
D. Providing ATP
Answer: B
7. Endospores allow bacteria to:
A. Swim faster
B. Produce continuous toxin
C. Survive extreme conditions in dormancy
D. Divide faster
Answer: C
8. Obligate aerobes require:
A. Absence of oxygen
B. Only CO2
C. Fermentation only
D. Oxygen for growth
Answer: D
9. Obligate anaerobes are:
A. Inhibited or killed by oxygen
B. Stimulated by oxygen
C. Independent of atmosphere
D. Only skin flora
Answer: A
10. Facultative anaerobes grow:
© MOh T | @moht | Educational Use Only Page 1
, Testbank | Medical Microbiology & Parasitology | © MOh T @moht
A. Only intracellularly
B. With or without oxygen
C. Only anaerobically
D. Only in pure N2
Answer: B
11. Sterilization means:
A. Cleaning visible dirt
B. Soap washing only
C. Destroying all microbial life including spores
D. Reducing microbes to safe levels
Answer: C
12. Disinfection means:
A. Killing all spores on surfaces
B. Sterilizing tissue
C. Hand hygiene alone
D. Reducing pathogens on inanimate objects (spores may survive)
Answer: D
13. Antisepsis refers to:
A. Reducing microbes on living tissue
B. Instrument sterilization
C. Floor cleaning
D. Spore eradication on skin
Answer: A
14. Pasteurization aims to:
A. Kill every spore
B. Reduce pathogens and spoilage organisms without complete sterilization
C. Fully sterilize including spores
D. Only cool liquids
Answer: B
15. Autoclaving uses:
A. UV only
B. Filtration only
C. Moist heat under pressure (e.g. 121°C)
D. Dry heat at 100°C
Answer: C
16. The single most important infection-control measure is:
A. Wearing a gown always
B. Air filtration alone
C. Antibiotics prophylactically for all
D. Hand hygiene
Answer: D
17. Staphylococcus aureus appears as:
A. Gram-positive cocci in clusters
B. Gram-negative rods
C. Acid-fast bacilli
D. Spirochetes
Answer: A
18. MRSA is resistant mainly to:
A. Vancomycin always
B. Many beta-lactams including methicillin/oxacillin
C. All known antibiotics without exception
D. Only topical agents
Answer: B
19. Streptococcus pyogenes (Group A) can cause:
A. Only tetanus
© MOh T | @moht | Educational Use Only Page 2
