Medical Microbiology Final Exam Questions and Correct
Answers
Question 1
All microorganisms are best defined as organisms that:
A. cause human disease
B. lack a cell nucleus
C. are infectious particles
D. are too small to be seen with the unaided eye
E. can only be found growing in laboratories
Correct Answer
D. are too small to be seen with the unaided eye
Question 2
Which of the following is a difference between prokaryotic and eukaryotic cells?
A. prokaryotes have a cell wall, while eukaryotes do not
B. prokaryotes have multiple linear chromosomes while eukaryotes have a single, circle chromosome
C. eukaryotes have no membrane bound organelles, while prokaryotes do contain them
D. prokaryotes have a nucleus while eukaryotes do not
E. prokaryotes contain the bacteria and archea, while eukaryotes include all other living organisms
Correct Answer
E. prokaryotes contain the bacteria and archea, while eukaryotes include all other living organisms
Page 1 of 82
,Question 3
Which of the following is found in ALL bacterial cells?
A. flagella
B. cell wall
C. pili
D. spore
E. none of the above
Correct Answer
E. none of the above
Question 4
Microbes are beneficial in that they have been used to:
A. treat waste water
B. clean up toxic spills
C. decompose organic material
D. all of the above
E. none of the above
Correct Answer
D. all of the above
Page 2 of 82
,Question 5
Scientists use microbes to produce drugs, hormones, and enzymes. This type of biotechnology involves the transfer of
foreign genetic material into a microbe, a process called:
A. recombinant DNA technology
B. gene therapy
C. bioremediation
D. polymerase chain reaction
Correct Answer
A. recombinant DNA technology
Question 6
Which of the following is the smallest cause of infectious disease?
A. protozoans
B. bacteria
C. helminths
D. viruses
E. none of the above
Correct Answer
D. viruses
Page 3 of 82
, Question 7
Gram negative bacteria differ from gram positive in that they:
A. are non-pathogenic
B. do not have a cell wall
C. have flagella
D. have an outer membrane surrounding the cell wall
E. none of the above
Correct Answer
D. have an outer membrane surrounding the cell wall
Question 8
Which of the following is mismatched?
A. ribosomes - protein synthesis
B. inclusions - excess cell nutrients and materials
C. plasmids - genes essential for growth and metabolism
D. nucleoid - hereditary material
E. cytoplasm - dense, gelatinous solution
Correct Answer
C. plasmids - genes essential for growth and metabolism
Page 4 of 82
Answers
Question 1
All microorganisms are best defined as organisms that:
A. cause human disease
B. lack a cell nucleus
C. are infectious particles
D. are too small to be seen with the unaided eye
E. can only be found growing in laboratories
Correct Answer
D. are too small to be seen with the unaided eye
Question 2
Which of the following is a difference between prokaryotic and eukaryotic cells?
A. prokaryotes have a cell wall, while eukaryotes do not
B. prokaryotes have multiple linear chromosomes while eukaryotes have a single, circle chromosome
C. eukaryotes have no membrane bound organelles, while prokaryotes do contain them
D. prokaryotes have a nucleus while eukaryotes do not
E. prokaryotes contain the bacteria and archea, while eukaryotes include all other living organisms
Correct Answer
E. prokaryotes contain the bacteria and archea, while eukaryotes include all other living organisms
Page 1 of 82
,Question 3
Which of the following is found in ALL bacterial cells?
A. flagella
B. cell wall
C. pili
D. spore
E. none of the above
Correct Answer
E. none of the above
Question 4
Microbes are beneficial in that they have been used to:
A. treat waste water
B. clean up toxic spills
C. decompose organic material
D. all of the above
E. none of the above
Correct Answer
D. all of the above
Page 2 of 82
,Question 5
Scientists use microbes to produce drugs, hormones, and enzymes. This type of biotechnology involves the transfer of
foreign genetic material into a microbe, a process called:
A. recombinant DNA technology
B. gene therapy
C. bioremediation
D. polymerase chain reaction
Correct Answer
A. recombinant DNA technology
Question 6
Which of the following is the smallest cause of infectious disease?
A. protozoans
B. bacteria
C. helminths
D. viruses
E. none of the above
Correct Answer
D. viruses
Page 3 of 82
, Question 7
Gram negative bacteria differ from gram positive in that they:
A. are non-pathogenic
B. do not have a cell wall
C. have flagella
D. have an outer membrane surrounding the cell wall
E. none of the above
Correct Answer
D. have an outer membrane surrounding the cell wall
Question 8
Which of the following is mismatched?
A. ribosomes - protein synthesis
B. inclusions - excess cell nutrients and materials
C. plasmids - genes essential for growth and metabolism
D. nucleoid - hereditary material
E. cytoplasm - dense, gelatinous solution
Correct Answer
C. plasmids - genes essential for growth and metabolism
Page 4 of 82
