Apollon Bacteriology Exam Questions
and Answers 100% Solved
3. Capsules can be used for
a. complement fixation test
b. hemagglutination test
c. serotyping by swelling
d. precipitation test - ✔✔c. serotyping by swelling
4. To demonstrate capsules, grow the culture on media containing
a. antibiotics
b. milk
c. serum
d. b and c - ✔✔d. b and c
5. The Quellung test depends on the antigenic specificity of the
a. nucleus
b. cell wall
c. flagella
d. capsule - ✔✔d. capsule
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,6. Dark staining granules are called
a. spores
b. capsules
c. cysts
d. metachromatic - ✔✔d. metachromatic
7. Organisms that vary in size and shape are referred to as
a. psychrophilic
b. thermophilic
c. palisades
d. pleomorphic - ✔✔d. pleomorphic
8. In the bacterial growth cycle, growth ceases because nutrients are
exhausted or toxic metabolic products have accumulated in the
a. stationary phase
b. logarithmic phase
c. lag phase
d. a and b - ✔✔a. stationary phase
9. Which genera of bacteria form spores?
a. Corynebacterium
b. Bacillus
c. Clostridium
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,d. b and c - ✔✔d. b and c
10. Bacteria that grow in the absence of atmospheric (free) oxygen and
obtain oxygen from oxygen-containing compounds are called
a. anaerobes
b. aerobes
c. capnophiles
d. aerotolerant - ✔✔a. anaerobes
11. The temperature at which bacteria grow best is known as
a. thermophilic
b. psychrophilic
c. optimum
d. mesophilic - ✔✔c. optimum
12. A slimy colony on blood agar medium indicates which of the following
characteristics may be present?
a. blood agar is too old
b. organism has a capsule
c. plate was incubated too long
d. plate was incubated at too high a temperature - ✔✔b. organism has a
capsule
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, 13. On blood agar plates a small zone of alpha-hemolysis surrounded by a
zone of beta-hemolysis after refrigeration is known
a. gamma-hemolysis
b. beta-hemolysis
c. alpha-hemolysis
d. alpha-prime hemolysis - ✔✔d. alpha-prime hemolysis
14. When using fractional sterilization the sequence is
a. heating (kills vegetative bacteria)
b. incubation (spores germinate)
c. heating (kills remaining vegetative bacteria)
d. all of the above - ✔✔d. all of the above
15. What is the most effective method of sterilization
a. autoclave
b. dry heat oven
c. boiling
d. disinfection - ✔✔a. autoclave
16. Which of the following is used for quality control for the dry heat oven?
a. Bacillus subtilis
b. Bacillus stearothermophilus
c. Staphylococcus aureus
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and Answers 100% Solved
3. Capsules can be used for
a. complement fixation test
b. hemagglutination test
c. serotyping by swelling
d. precipitation test - ✔✔c. serotyping by swelling
4. To demonstrate capsules, grow the culture on media containing
a. antibiotics
b. milk
c. serum
d. b and c - ✔✔d. b and c
5. The Quellung test depends on the antigenic specificity of the
a. nucleus
b. cell wall
c. flagella
d. capsule - ✔✔d. capsule
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,6. Dark staining granules are called
a. spores
b. capsules
c. cysts
d. metachromatic - ✔✔d. metachromatic
7. Organisms that vary in size and shape are referred to as
a. psychrophilic
b. thermophilic
c. palisades
d. pleomorphic - ✔✔d. pleomorphic
8. In the bacterial growth cycle, growth ceases because nutrients are
exhausted or toxic metabolic products have accumulated in the
a. stationary phase
b. logarithmic phase
c. lag phase
d. a and b - ✔✔a. stationary phase
9. Which genera of bacteria form spores?
a. Corynebacterium
b. Bacillus
c. Clostridium
2
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,d. b and c - ✔✔d. b and c
10. Bacteria that grow in the absence of atmospheric (free) oxygen and
obtain oxygen from oxygen-containing compounds are called
a. anaerobes
b. aerobes
c. capnophiles
d. aerotolerant - ✔✔a. anaerobes
11. The temperature at which bacteria grow best is known as
a. thermophilic
b. psychrophilic
c. optimum
d. mesophilic - ✔✔c. optimum
12. A slimy colony on blood agar medium indicates which of the following
characteristics may be present?
a. blood agar is too old
b. organism has a capsule
c. plate was incubated too long
d. plate was incubated at too high a temperature - ✔✔b. organism has a
capsule
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, 13. On blood agar plates a small zone of alpha-hemolysis surrounded by a
zone of beta-hemolysis after refrigeration is known
a. gamma-hemolysis
b. beta-hemolysis
c. alpha-hemolysis
d. alpha-prime hemolysis - ✔✔d. alpha-prime hemolysis
14. When using fractional sterilization the sequence is
a. heating (kills vegetative bacteria)
b. incubation (spores germinate)
c. heating (kills remaining vegetative bacteria)
d. all of the above - ✔✔d. all of the above
15. What is the most effective method of sterilization
a. autoclave
b. dry heat oven
c. boiling
d. disinfection - ✔✔a. autoclave
16. Which of the following is used for quality control for the dry heat oven?
a. Bacillus subtilis
b. Bacillus stearothermophilus
c. Staphylococcus aureus
4
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