Question 1

The three cell types discussed,eukaryotes,archaea,and bacteria,all derived from ______.

Accepted Answer

A)   cells with a true nucleus
B)   the last universal common ancestor
C)   photosynthetic bacteria
D)   archaeaE) A) and C)
F) All of the above

Question 2

Caring for patients infected with a new virus requires safety precautions for medical personnel.Choosing appropriate procedures is an example of a(n) ______ process.

Accepted Answer

A)   pathogenic
B)   deductive
C)   hypothetical
D)   inductiveE) All of the above
F) None of the above

Question 3

The microorganisms that recycle nutrients by breaking down dead matter and wastes are called ______.

Accepted Answer

A)   fermenters
B)   eukaryotes
C)   decomposers
D)   pathogens
E)   prokaryotesF) B) and E)
G) A) and D)

Question 4

Sterile refers to ______.

Accepted Answer

A)   homogenized
B)   absence of any life forms and viral particles
C)   pathogen-free
D)   pasteurized
E)   absence of sporesF) A) and E)
G) All of the above

Question 5

Members of the same species share many more characteristics compared to those shared by members of the same kingdom.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

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

Question 7

A recently-developed mnemonic for remembering the taxonomic levels from Domain to Species is "Dumb Kids Prefer Candy Over Fancy Green Salad." The word "candy" here is a reminder of the taxonomic level of _______.

Accepted Answer

A)   chain
B)   culture
C)   category
D)   colony
E)   classF) C) and D)
G) A) and D)

Question 8

The names of the three proposed domains are: Bacteria,Protista,and Eukarya.

Accepted Answer

A) True 
 B)False

Question 9

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 E)
G) A) and D)

Question 10

Microorganisms are best defined as organisms that

Accepted Answer

A)   can only be found growing in laboratories.
B)   are too small to be seen with the unaided eye.
C)   are infectious particles.
D)   lack a cell nucleus.
E)   cause human disease.F) All of the above
G) B) and E)

Question 11

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) None of the above
E) A) and C)

Question 12

Which of the following are not considered microorganisms?

Accepted Answer

A)   Fungi
B)   Protozoa
C)   Viruses
D)   Bacteria
E)   MosquitoesF) A) and B)
G) B) and C)

Question 13

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 14

Many chronic infections are caused by microbes that associate in communities termed ______.

Accepted Answer

A)   biofilms
B)   virions
C)   microbiota
D)   sedimentsE) A) and B)
F) A) and C)

Question 15

A scientist who studies the influence of microbes in the formation of caves is called a(n) ______.

Accepted Answer

A)   astrobiologist
B)   epidemiologist
C)   geomicrobiologist
D)   immunologistE) None of the above
F) A) and B)

Question 16

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) C) and E)
G) All of the above

Question 17

A scientist studying the sequence of nucleotides in the rRNA of a bacterial species is working on

Accepted Answer

A)   recombinant DNA.
B)   nomenclature.
C)   determining evolutionary relatedness.
D)   bioremediation.
E)   determining if that species is the cause of a new disease.F) B) and C)
G) A) and E)

Question 18

Among the types of microorganisms,the ______ are noncellular.

Accepted Answer

A)   protozoans
B)   bacteria
C)   viruses
D)   helminthsE) A) and D)
F) All of the above

Question 19

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

Question 20

Eukaryotic cells are larger than bacterial or archaeal cells; all cells are larger than macromolecules.Where do viruses fit on this scale?

Accepted Answer

A)   Viruses are smaller than eukaryotic cells, but larger than bacterial or archaeal cells.
B)   Viruses are smaller than macromolecules.
C)   Viruses are larger than eukaryotic cells.
D)   Viruses are smaller than bacterial or archaeal cells, but larger than macromolecules.E) A) and D)
F) A) and C)

Exam 1: The Main Themes of Microbiology

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Many chronic infections are caused by microbes that associate in communities termed ______.

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

A scientist who studies the influence of microbes in the formation of caves is called a(n) ______.

Correct AnswerverifiedShow Answer

The names of the three proposed domains are: Bacteria,Protista,and Eukarya.

Correct AnswerverifiedShow Answer

Among the types of microorganisms,the ______ are noncellular.

Correct AnswerverifiedShow Answer

The three cell types discussed,eukaryotes,archaea,and bacteria,all derived from ______.

Correct AnswerverifiedShow Answer

Sterile refers to ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A scientist studying the sequence of nucleotides in the rRNA of a bacterial species is working on

Correct AnswerverifiedShow Answer

Caring for patients infected with a new virus requires safety precautions for medical personnel.Choosing appropriate procedures is an example of a(n) ______ process.

Correct AnswerverifiedShow Answer

Eukaryotic cells are larger than bacterial or archaeal cells; all cells are larger than macromolecules.Where do viruses fit on this scale?

Correct AnswerverifiedShow Answer

The microorganisms that recycle nutrients by breaking down dead matter and wastes are called ______.

Correct AnswerverifiedShow Answer

A recently-developed mnemonic for remembering the taxonomic levels from Domain to Species is "Dumb Kids Prefer Candy Over Fancy Green Salad." The word "candy" here is a reminder of the taxonomic level of _______.

Correct AnswerverifiedShow Answer

Microorganisms are best defined as organisms that

Correct AnswerverifiedShow Answer

Members of the same species share many more characteristics compared to those shared by members of the same kingdom.

Correct AnswerverifiedShow Answer

Which of the following are not considered microorganisms?

Correct AnswerverifiedShow Answer

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