Question 1

Helminths are ______.

Accepted Answer

A)   molds
B)   parasitic worms
C)   bacteria
D)   protozoa
E)   infectious particlesF) A) and B)
G) D) and E) B

Question 2

Which scientific name is written correctly?

Accepted Answer

A)   S. aureus
B)   Staphylococcus aureus
C)   Staphylococcus Aureus
D)   staphylococcus aureus.
E)   Staphylococcus aureus..F) D) and E)
G) All of the above

Question 3

Select the correct descending taxonomic hierarchy (left to right) .

Accepted Answer

A)   Class, phylum, order
B)   Family, genus, species
C)   Kingdom, domain, phylum
D)   Family, order, class
E)   Genus, species, familyF) B) and D)
G) B) and E)

Question 4

Which of the following historical microbiologists is incorrectly paired with his contribution to the science?

Accepted Answer

A)   Francesco Redi: tested spontaneous generation with meat exposed to the air or covered with cloth
B)   Louis Pasteur: demonstrated that anthrax was caused by a bacterium
C)   Joseph Lister: promoted disinfecting hands and air prior to surgery
D)   Antonie van Leeuwenhoek: made and used quality magnifying lenses to observe and record microorganismsE) B) and D)
F) B) and C)

Question 5

Which area of biology states that living things undergo gradual structural and functional changes over long periods of time?

Accepted Answer

A)   Evolution
B)   Morphology
C)   Phylogeny
D)   Genetics
E)   TransformationF) A) and C)
G) B) and E) A

Question 6

Many chronic medical conditions have been found to be associated with microbial agents.

Accepted Answer

A) True 
 B)False

Question 7

In which way are bacteria and eukaryotes the same?

Accepted Answer

A)   Contain a nucleus to hold DNA
B)   Contain ribosomes for protein synthesis
C)   Contain membrane-bound organelles
D)   Have a cell wall for rigidityE) All of the above
F) A) and B)

Question 8

Which scientific field is involved in the identification,classification,and naming of organisms?

Accepted Answer

A)   Nomenclature
B)   Epidemiology
C)   Taxonomy
D)   Phylogeny
E)   PathologyF) A) and E)
G) C) and E)

Question 9

The number one worldwide infectious diseases are ______.

Accepted Answer

A)   AIDS-related diseases
B)   malaria and other protozoan diseases
C)   respiratory diseases
D)   measles and other rash diseases
E)   diarrheal diseasesF) C) and D)
G) B) and D)

Question 10

The first cells appeared about ___ billion years ago.

Accepted Answer

A)   5
B)   4.5
C)   3.5
D)   2
E)   1F) A) and D)
G) D) and E)

Question 11

When humans manipulate the genes of microorganisms,the process is called ______.

Accepted Answer

A)   epidemiology
B)   taxonomy
C)   bioremediation
D)   genetic engineering
E)   immunologyF) A) and B)
G) A) and D)

Question 12

In the experiments constructed by Pasteur to disprove spontaneous generation,swan-necked flasks were used.Why was this shape of flask used in this experiment?

Accepted Answer

A)   The shape of the glass neck allowed the bacteria into the flask and then into the media, but air could not enter.
B)   The glass necks needed to be open to the air, yet constructed so that bacteria would settle in the lowest part of the neck.
C)   These flask shapes were the easiest and cheapest to produce.
D)   Because the glass necks were stretched out, the heat used to sterilize the medium inside of the flask could not kill the bacteria in the neck.E) A) and C)
F) A) and B)

Question 13

In general,eukaryotic cells are about ______ times larger than bacterial or archaeal cells.

Accepted Answer

A)   2
B)   10
C)   50
D)   1000E) All of the above
F) C) and D)

Question 14

Analysis of the small subunit rRNAs from all organisms in the three current domains suggests that

Accepted Answer

A)   the prokarytoes, archaea, and eukaryotes are not related.
B)   the eukaryotes arose from prokaryotes.
C)   the Archaea are more closely related to bacteria than eukaryotes.
D)   all modern and extinct organisms on earth arose from a common ancestor.E) B) and C)
F) None of the above

Question 15

Which of the following is a traditional human use of microorganisms?

Accepted Answer

A)   Baking bread
B)   Cleaning up oil spills
C)   Treating water and sewage
D)   Mass-producing antibioticsE) None of the above
F) B) and C)

Question 16

Which of the following does not indicate microbe involvement in energy and nutrient flow?

Accepted Answer

A)   Decomposition of dead matter and wastes
B)   Digestion of complex carbohydrates in animal diets
C)   Formation of greenhouse gases, CO2 and methane
D)   Thermal hot springs warmed by heat from earth's interiorE) B) and C)
F) A) and D)

Question 17

Studies of the immune response to an infection caused by microorganisms would be performed by a(n) ______.

Accepted Answer

A)   hypersensitivity specialist
B)   immunologist
C)   geomicrobiologist
D)   epidemiologistE) All of the above
F) None of the above B

Question 18

Archaeal cells are about ______ bacterial cells.

Accepted Answer

A)   ten times smaller than
B)   the same size as
C)   ten times larger thanD) B) and C)
E) A) and C)

Question 19

Organisms called parasites are ______.

Accepted Answer

A)   the decomposers in ecosystems
B)   always viruses
C)   always harmful to their host
D)   free-livingE) A) and C)
F) A) and D)

Question 20

Taxonomy does not involve ______.

Accepted Answer

A)   classification
B)   a common name
C)   nomenclature
D)   identificationE) B) and C)
F) A) and C)

Exam 1: The Main Themes of Microbiology

Helminths are ______.

Correct AnswerverifiedB

Which scientific name is written correctly?

Correct AnswerverifiedShow Answer

Select the correct descending taxonomic hierarchy (left to right) .

Correct AnswerverifiedShow Answer

Which of the following historical microbiologists is incorrectly paired with his contribution to the science?

Correct AnswerverifiedShow Answer

Which area of biology states that living things undergo gradual structural and functional changes over long periods of time?

Correct AnswerverifiedA

Many chronic medical conditions have been found to be associated with microbial agents.

Correct AnswerverifiedShow Answer

In which way are bacteria and eukaryotes the same?

Correct AnswerverifiedShow Answer

Which scientific field is involved in the identification,classification,and naming of organisms?

Correct AnswerverifiedShow Answer

The number one worldwide infectious diseases are ______.

Correct AnswerverifiedShow Answer

The first cells appeared about ___ billion years ago.

Correct AnswerverifiedShow Answer

When humans manipulate the genes of microorganisms,the process is called ______.

Correct AnswerverifiedShow Answer

In the experiments constructed by Pasteur to disprove spontaneous generation,swan-necked flasks were used.Why was this shape of flask used in this experiment?

Correct AnswerverifiedShow Answer

In general,eukaryotic cells are about ______ times larger than bacterial or archaeal cells.

Correct AnswerverifiedShow Answer

Analysis of the small subunit rRNAs from all organisms in the three current domains suggests that

Correct AnswerverifiedShow Answer

Which of the following is a traditional human use of microorganisms?

Correct AnswerverifiedShow Answer

Which of the following does not indicate microbe involvement in energy and nutrient flow?

Correct AnswerverifiedShow Answer

Studies of the immune response to an infection caused by microorganisms would be performed by a(n) ______.

Correct AnswerverifiedB

Archaeal cells are about ______ bacterial cells.

Correct AnswerverifiedShow Answer

Organisms called parasites are ______.

Correct AnswerverifiedShow Answer

Taxonomy does not involve ______.

Correct AnswerverifiedShow Answer

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A

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B

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