Question 1

Which of the following is a taxon that contains all the other taxa listed?

Accepted Answer

A)  Family
B)  Genus
C)  Kingdom
D)  Species
E)  PhylumF) A) and D)
G) A) and C)

Question 2

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

Accepted Answer

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

Question 3

A diagram of the three domains (Bacteria, Archaea, Eukarya)  proceeding from the Last Universal Common Ancestor would show Archaea

Accepted Answer

A)  branching off the Domain Bacteria.
B)  branching off the Domain Eukarya.
C)  as the original cells from which the others derived.D) B) and C)
E) All of the above

Question 4

Using microbes to detoxify a site contaminated with heavy metals is an example of ______.

Accepted Answer

A)  biotechnology
B)  bioremediation
C)  decomposition
D)  epidemiology
E)  immunologyF) A) and E)
G) C) and D)

Question 5

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) A) and B)
F) A) and D) D

Question 6

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) All of the above
F) C) and D)

Question 7

Which of the following is NOT a recent discovery that has had a huge impact on the understanding of microbiology?

Accepted Answer

A)  Restriction enzymes
B)  PCR technique
C)  Biofilms
D)  Small RNAs
E)  All are significant discoveries.F) A) and B)
G) A) and C)

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) None of the above
G) C) and D)

Question 9

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

Accepted Answer

A) True 
 B)False  True

Question 10

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

Accepted Answer

A)  2
B)  10
C)  50
D)  1000E) A) and B)
F) A) and C)

Question 11

The scientific method includes all of the following except ______.

Accepted Answer

A)  experimentation
B)  hypothesis
C)  publication
D)  observationE) B) and C)
F) A) and D)

Question 12

The scientific method involves formulating a tentative explanation, called the hypothesis, to account for what has been observed or measured.

Accepted Answer

A) True 
 B)False

Question 13

The majority of oxygen in earth's atmosphere is a product of photosynthesis by ______.

Accepted Answer

A)  rain forests
B)  microorganisms
C)  green plants
D)  agricultural landsE) A) and D)
F) C) and D)

Question 14

Which of the following pairs of career descriptions and work tasks is not correctly matched?

Accepted Answer

A)  Medical microbiologist -- identify the cause of a bladder infection at a hospital lab
B)  Industrial microbiologist -- manipulate bacterial strains to be less pathogenic
C)  Agricultural microbiologist -- identify bacterial causes of crop disease
D)  Public health microbiologist -- track the incidence of AIDS in a populationE) A) and C)
F) B) and C)

Question 15

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) D) and E)
G) B) and D)

Question 16

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) C) and D)
F) B) and C)

Question 17

A hypothesis must be tested many times before it can be considered a theory.

Accepted Answer

A) True 
 B)False

Question 18

The orderly arrangement of organisms into a hierarchy of taxa is called ______.

Accepted Answer

A)  experimentation
B)  biotechnology
C)  classification
D)  identification
E)  nomenclatureF) B) and E)
G) A) and E)

Question 19

The incidence of deaths from communicable disease is ______ in the United States compared to the entire world.

Accepted Answer

A)  less
B)  greater
C)  about the sameD) A) and B)
E) A) and C)

Question 20

Which of the following is not a process in the scientific method?

Accepted Answer

A)  Systematic observation
B)  Development of a theory
C)  Laboratory experimentation
D)  Formulation of a hypothesis
E)  Belief in a preconceived ideaF) B) and D)
G) B) and C)

Exam 1: The Main Themes of Microbiology

Which of the following is a taxon that contains all the other taxa listed?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last Universal Common Ancestor would show Archaea

Correct AnswerverifiedShow Answer

Using microbes to detoxify a site contaminated with heavy metals is an example of ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

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

Correct AnswerverifiedShow Answer

Which of the following is NOT a recent discovery that has had a huge impact on the understanding of microbiology?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedTrue

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

Correct AnswerverifiedShow Answer

The scientific method includes all of the following except ______.

Correct AnswerverifiedShow Answer

The scientific method involves formulating a tentative explanation, called the hypothesis, to account for what has been observed or measured.

Correct AnswerverifiedShow Answer

The majority of oxygen in earth's atmosphere is a product of photosynthesis by ______.

Correct AnswerverifiedShow Answer

Which of the following pairs of career descriptions and work tasks is not correctly matched?

Correct AnswerverifiedShow Answer

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

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

A hypothesis must be tested many times before it can be considered a theory.

Correct AnswerverifiedShow Answer

The orderly arrangement of organisms into a hierarchy of taxa is called ______.

Correct AnswerverifiedShow Answer

The incidence of deaths from communicable disease is ______ in the United States compared to the entire world.

Correct AnswerverifiedShow Answer

Which of the following is not a process in the scientific method?

Correct AnswerverifiedShow Answer

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