CBP 520 Final Exam Newest 2025/2026 Complete
All 220 Questions And Correct Detailed Answers
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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 -
.....ANSWER ...✔✔ D. are too small to be seen with the
unaided eye
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
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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
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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
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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