MICROBIOLOGY 123 EXAM QUESTIONS WITH CORRECT ANSWERS GRADED A+ 2022/2023 UPDATE

MICROBIOLOGY 123 EXAM QUESTIONS WITH
CORRECT ANSWERS GRADED A+ 2022/2023 UPDATE


MULTIPLE CHOICE

1. In the sixteenth century a father-and-son team, by the name of , produced a
compound microscope consisting of a simple tube with lenses at each end.
a.
van Leeuwenhoek
b.
Semmelweis
c.
Janssen
d.
Hooke
ANS: C REF: p. 3

2. “Animalcules” were first described by
a.
Robert Hooke.
b.
Antony van Leeuwenhoek.
c.
Hans Janssen.
d.
John Needham.
ANS: B REF: p. 3

3. Micrographia, a publication illustrating insects, sponges, as well as plant cells, was published
by
a.
Robert Hooke.
b.
Antony van Leeuwenhoek.
c.
Hans Janssen.
d.
John Needham.
ANS: A REF: p. 3

4. Low-power microscopes designed for observing fairly large objects such as insects or worms
are
a.
electron microscopes.
b.
dark-field microscopes.
c.
fluorescence microscopes.
d.
stereomicroscopes.
ANS: D REF: p. 5

5. A microscope that provides a three-dimensional image of a specimen is a
a.
dark-field microscope.
b.
transmission electron microscope.
c.
bright-field microscope.
d.
scanning electron microscope.
ANS: D REF: p. 7

6. The tool of choice to observe living microorganisms is

, MICROBIOLOGY 123 EXAM QUESTIONS WITH
CORRECT ANSWERS GRADED A+ 2022/2023 UPDATE
a.
bright-field microscope.
b.
phase-contrast microscope.

, MICROBIOLOGY 123 EXAM QUESTIONS WITH
CORRECT ANSWERS GRADED A+ 2022/2023 UPDATE

c.
fluorescence microscope.
d.
electron microscope.
ANS: B REF: p. 6

7. Which scientist is most responsible for ending the controversy about spontaneous generation?
a.
John Needham
b.
Joseph Lister
c.
Louis Pasteur
d.
Robert Koch
ANS: C REF: p. 8

8. Fossils of prokaryotes go back billion years.
a. 4.0 to 5.0
b. 3.5 to 4.0
c. 2.5 to 3.0
d. 2.2 to 2.7

ANS: B REF: p. 9

9. Molds belong to which of the following groups of eukaryotic organisms?
a.
Protozoans
b.
Archaea
c.
Fungi
d.
Algae
ANS: C REF: p. 11

10. The correct descending order of taxonomic categories is
a.
species, domain, phylum, kingdom, order, division, class, genus.
b.
domain, kingdom, phylum, class, family, order, genus, species.
c.
domain, kingdom, phylum, class, order, family, genus, species.
d.
kingdom, domain, phylum, order, class, family, genus, species.
ANS: C REF: p. 10

11. Complex communities of microorganisms on surfaces are called
a.
colonies.
b.
biofilms.
c.
biospheres.
d.
flora.
ANS: B REF: p. 12

12.12.
A relationship between organisms in which the waste product of one provides nutrients for
another is called
a.
mutualism.
b.
competition.
c.
synergism.
d.
commensalism.
ANS: D REF: p. 12

, MICROBIOLOGY 123 EXAM QUESTIONS WITH
CORRECT ANSWERS GRADED A+ 2022/2023 UPDATE


13. Which of the following sites of the human body does not have a normal flora?
a.
Intestine
b.
Skin
c.
Vagina
d.
Blood
ANS: D REF: p. 12

14. Which of the following lack nucleic acids?
a.
Archaea
b.
Viruses
c.
Prions
d.
Bacteria
ANS: C REF: p. 11

15. The binominal system of nomenclature was originally developed by
a.
Pasteur.
b.
Linnaeus.
c.
Martini.
d.
Jenner.
ANS: B REF: p. 11

16. Which of the following scientists performed the first vaccination against smallpox?
a.
Pasteur
b.
Jenner
c.
Semmelweis
d.
Koch
ANS: B REF: p. 9

17. Which of the following diseases is generally caused by contaminated food?
a.
Mumps
b.
Shigellosis
c.
Legionellosis
d.
Tuberculosis
ANS: B REF: p. 13

18. Which of the following diseases is transmitted via aerosols?
a.
Psittacosis
b.
Shigellosis
c.
Leptospirosis
d.
Giardiasis
ANS: A REF: p. 14

19. Which of the following organisms is used in the production of cheese?
a.
Propionibacterium shermanii
b.
Acetobacter aceti
c.
Giardia