Microbiology Final Exam Questions with
Answers |Certified Quality
What was Leeuwenhoek's contribution to the science of microbiology?
A.) He discovered some of the ways in which microbes can be transmitted
between individuals
B.) He developed the first microscope
C.) He did experiments supporting the idea of spontaneous generation
D.) He developed the vaccine for smallpox - CORRECT ANSWER-He developed
the first microscope
All of the following individuals showed that cleanliness played a role in human
disease EXCEPT________
A.) Lister
B.) Jenner
C.) Nightingale
D.) Semmelweis - CORRECT ANSWER-Jenner
Who studied fermentation?
A.) Pasteur
B.) Gram
C.) Koch
D.) Spallazani - CORRECT ANSWER-Pasteur
Koch's work involving anthrax was significant because it was the first time
_________
A.) Bacteria has been grown in a laboratory
B.) A bacterium had been proven to cause a disease
C.) Anthrax has been discovered in humans
,D.) Bacteria had been seen in a microscope - CORRECT ANSWER-A bacterium
had been proven to cause a disease
Which of the following is NOT a growing area of microbial study?
A.) Reducing antimicrobial resistance
B.) Methods of disease transmission
C.) Ultraminiature technology
D.) Communication within biofilms - CORRECT ANSWER-Methods of disease
transmission
Which of the following is NOT an example of a fungus?
A.) Algae
B.) Mushrooms
C.) Molds
D.) Yeasts - CORRECT ANSWER-Algae
Whose experiments supported the existence of a "life force"?
A.) Redi
B.) Spallanzani
C.) Needham
D.) Pasteur - CORRECT ANSWER-Needham
Put the following steps of Koch's postulates in order: a. The suspected infectious
agent must be isolated and grown outside the host. b. The suspected infectious
agent causes the disease when it is introduced to a healthy, experimental host. c.
The suspected infectious agent must be found in every case of the disease. d.
The suspected infectious agent must be found in the disease experimental host.
A.) a, d, c, b
B.) c, a, b, d
C.) d, b, c, a
D.) c, b, a, d - CORRECT ANSWER-c, a, b, d
,Which of the following refers to the use of bacteria or other microbes to detoxify
pollutants?
A.) Biochemistry
B.) Bioremediation
C.) Biotechnology
D.) Recombinant DNA technology - CORRECT ANSWER-Bioremediation
The tests for these uncommon pathogens are similar to the ones that have
already been performed for the common viruses, but in this case, you will try to
identify the DNA or proteins of specific viruses that are not often seen in clinics or
hospitals in that area of the country. Each region of the country has certain viral
pathogens that are spread throughout the human population that live in that area.
When one of these viruses spreads to a new area, we consider it to be
"emerging" in this new population of people. Some detective work and
deductions will be required. By applying the scientific method, you can focus and
refine your list of possible viral pathogens to experimentally test for. You'll begin
your investigation by reviewing the patient's history and symptoms and
formulating a hypothesis for possible causative agents. Based on what you know
of the scientific method, what would you like to do next?
A.) R - CORRECT ANSWER-Design and run some tests and experiments
You have successfully completed the experiments and analyzed your results.
Your analysis has allowed you to refine you hypothesis and remove all but one
virus strain from your list of possible causative agents. With your success at
identifying the viral pathogen, you will now need to begin the long process of
characterization, the studying of all aspects of an organism to determine whether
this virus is truly new or has been isolated and identified before. The
characterization will begin with studying the genome of this pathogen.
Sequencing machines will determine the order of the nucleic acids that make up
the viral genome, and computers will be able to analyze this sequence to
determine the genes available for this virus. What is the area of biology that
studies the nucleic acid makeup of an organism?
A.) Molecular biology
B.) Biochemistry
, C.) Genealogy
D.) Genetics - CORRECT ANSWER-Genetics
In the late 1800s, a researcher by the name of Robert Koch developed a series
of postulates (guidelines) that can be used to prove that a given pathogen is the
true cause of a disease.
Koch's Postulates
1. The suspected causative agent must be found in every case of the disease
and be absent from healthy hosts.
2. The agent must be isolated and grown outside the host.
3. When the agent is introduced to a healthy, susceptible host, the host must get
the disease.
4. The same agent must be found in the diseased experimental host.
Which of the following steps does NOT follow one of Koch's postulates?
A.) You give a patient an antibiotic to treat an infection
B.) You are able to isolate a pathogenic bacterium from someone with a new type
of pharyngitis
C.) You collect a throat swab from a family member who has also become sick
D.) A mouse that was exposed to a potential viral pathogen has died and you are
able to isolate - CORRECT ANSWER-You give a patient an antibiotic to treat an
infection
How are the bacteria and the archaea different from all the other cellular
microbes?
A.) They have no nucleus
B.) They have cell walls
C.) They reproduce asexually
D.) They can move - CORRECT ANSWER-They have no nucleus
Spallanzani's experiments concerning spontaneous generation were NOT
universally accepted because ___________
A.) He did not heat his infusion flasks long enough
B.) He did not know which bacteria were growing in his flasks
C.) He eliminated air from his flasks by sealing them
Answers |Certified Quality
What was Leeuwenhoek's contribution to the science of microbiology?
A.) He discovered some of the ways in which microbes can be transmitted
between individuals
B.) He developed the first microscope
C.) He did experiments supporting the idea of spontaneous generation
D.) He developed the vaccine for smallpox - CORRECT ANSWER-He developed
the first microscope
All of the following individuals showed that cleanliness played a role in human
disease EXCEPT________
A.) Lister
B.) Jenner
C.) Nightingale
D.) Semmelweis - CORRECT ANSWER-Jenner
Who studied fermentation?
A.) Pasteur
B.) Gram
C.) Koch
D.) Spallazani - CORRECT ANSWER-Pasteur
Koch's work involving anthrax was significant because it was the first time
_________
A.) Bacteria has been grown in a laboratory
B.) A bacterium had been proven to cause a disease
C.) Anthrax has been discovered in humans
,D.) Bacteria had been seen in a microscope - CORRECT ANSWER-A bacterium
had been proven to cause a disease
Which of the following is NOT a growing area of microbial study?
A.) Reducing antimicrobial resistance
B.) Methods of disease transmission
C.) Ultraminiature technology
D.) Communication within biofilms - CORRECT ANSWER-Methods of disease
transmission
Which of the following is NOT an example of a fungus?
A.) Algae
B.) Mushrooms
C.) Molds
D.) Yeasts - CORRECT ANSWER-Algae
Whose experiments supported the existence of a "life force"?
A.) Redi
B.) Spallanzani
C.) Needham
D.) Pasteur - CORRECT ANSWER-Needham
Put the following steps of Koch's postulates in order: a. The suspected infectious
agent must be isolated and grown outside the host. b. The suspected infectious
agent causes the disease when it is introduced to a healthy, experimental host. c.
The suspected infectious agent must be found in every case of the disease. d.
The suspected infectious agent must be found in the disease experimental host.
A.) a, d, c, b
B.) c, a, b, d
C.) d, b, c, a
D.) c, b, a, d - CORRECT ANSWER-c, a, b, d
,Which of the following refers to the use of bacteria or other microbes to detoxify
pollutants?
A.) Biochemistry
B.) Bioremediation
C.) Biotechnology
D.) Recombinant DNA technology - CORRECT ANSWER-Bioremediation
The tests for these uncommon pathogens are similar to the ones that have
already been performed for the common viruses, but in this case, you will try to
identify the DNA or proteins of specific viruses that are not often seen in clinics or
hospitals in that area of the country. Each region of the country has certain viral
pathogens that are spread throughout the human population that live in that area.
When one of these viruses spreads to a new area, we consider it to be
"emerging" in this new population of people. Some detective work and
deductions will be required. By applying the scientific method, you can focus and
refine your list of possible viral pathogens to experimentally test for. You'll begin
your investigation by reviewing the patient's history and symptoms and
formulating a hypothesis for possible causative agents. Based on what you know
of the scientific method, what would you like to do next?
A.) R - CORRECT ANSWER-Design and run some tests and experiments
You have successfully completed the experiments and analyzed your results.
Your analysis has allowed you to refine you hypothesis and remove all but one
virus strain from your list of possible causative agents. With your success at
identifying the viral pathogen, you will now need to begin the long process of
characterization, the studying of all aspects of an organism to determine whether
this virus is truly new or has been isolated and identified before. The
characterization will begin with studying the genome of this pathogen.
Sequencing machines will determine the order of the nucleic acids that make up
the viral genome, and computers will be able to analyze this sequence to
determine the genes available for this virus. What is the area of biology that
studies the nucleic acid makeup of an organism?
A.) Molecular biology
B.) Biochemistry
, C.) Genealogy
D.) Genetics - CORRECT ANSWER-Genetics
In the late 1800s, a researcher by the name of Robert Koch developed a series
of postulates (guidelines) that can be used to prove that a given pathogen is the
true cause of a disease.
Koch's Postulates
1. The suspected causative agent must be found in every case of the disease
and be absent from healthy hosts.
2. The agent must be isolated and grown outside the host.
3. When the agent is introduced to a healthy, susceptible host, the host must get
the disease.
4. The same agent must be found in the diseased experimental host.
Which of the following steps does NOT follow one of Koch's postulates?
A.) You give a patient an antibiotic to treat an infection
B.) You are able to isolate a pathogenic bacterium from someone with a new type
of pharyngitis
C.) You collect a throat swab from a family member who has also become sick
D.) A mouse that was exposed to a potential viral pathogen has died and you are
able to isolate - CORRECT ANSWER-You give a patient an antibiotic to treat an
infection
How are the bacteria and the archaea different from all the other cellular
microbes?
A.) They have no nucleus
B.) They have cell walls
C.) They reproduce asexually
D.) They can move - CORRECT ANSWER-They have no nucleus
Spallanzani's experiments concerning spontaneous generation were NOT
universally accepted because ___________
A.) He did not heat his infusion flasks long enough
B.) He did not know which bacteria were growing in his flasks
C.) He eliminated air from his flasks by sealing them
