MEDICAL MICROBIOLOGY CHAPTERS 5
THROUGH 75 CERTIFICATION EVALUATION
TEST COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ 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.
Answer: E. prokaryotes contain the bacteria and archea, while
eukaryotes include all other living organisms
◉ Which of the following is found in ALL bacterial cells?
A. flagella
B. cell wall
C. pili
,D. spore
E. none of the above.
Answer: E. none of the above
◉ 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.
Answer: D. all of the above
◉ 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.
Answer: A. recombinant DNA technology
◉ Which of the following is the smallest cause of infectious disease?
,A. protozoans
B. bacteria
C. helminths
D. viruses
E. none of the above.
Answer: D. viruses
◉ 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.
Answer: D. have an outer membrane surrounding the cell wall
◉ 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.
Answer: C. plasmids - genes essential for growth and metabolism
, ◉ Bacterial endospores are not produced by:
A. staphylococcus
B. bacillus
C. clostridium
D. all of the choices produce endospores.
Answer: A. staphylococcus
◉ Which of the following is a unique characteristic of viruses that
distinguishes them from other major groups of microorganisms?
A. cause human disease
B. lack a nucleus
C. cannot be seen without a microscope
D. contain genetic material
E. lack cell structure.
Answer: E. lack cell structure
◉ Koch's postulates are criteria used to establish that:
A. microbes are found on dust particles
B. a specific microbe is the cause of a specified disease
C. life forms can only arise from preexisting life forms
D. a specific microbe should be classified in a specific kingdom
THROUGH 75 CERTIFICATION EVALUATION
TEST COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ 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.
Answer: E. prokaryotes contain the bacteria and archea, while
eukaryotes include all other living organisms
◉ Which of the following is found in ALL bacterial cells?
A. flagella
B. cell wall
C. pili
,D. spore
E. none of the above.
Answer: E. none of the above
◉ 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.
Answer: D. all of the above
◉ 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.
Answer: A. recombinant DNA technology
◉ Which of the following is the smallest cause of infectious disease?
,A. protozoans
B. bacteria
C. helminths
D. viruses
E. none of the above.
Answer: D. viruses
◉ 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.
Answer: D. have an outer membrane surrounding the cell wall
◉ 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.
Answer: C. plasmids - genes essential for growth and metabolism
, ◉ Bacterial endospores are not produced by:
A. staphylococcus
B. bacillus
C. clostridium
D. all of the choices produce endospores.
Answer: A. staphylococcus
◉ Which of the following is a unique characteristic of viruses that
distinguishes them from other major groups of microorganisms?
A. cause human disease
B. lack a nucleus
C. cannot be seen without a microscope
D. contain genetic material
E. lack cell structure.
Answer: E. lack cell structure
◉ Koch's postulates are criteria used to establish that:
A. microbes are found on dust particles
B. a specific microbe is the cause of a specified disease
C. life forms can only arise from preexisting life forms
D. a specific microbe should be classified in a specific kingdom
