Question 1

Once an organism is assigned to a particular taxonomic hierarchy, it is permanent and cannot be revised.

Accepted Answer

A) True 
 B)False

Question 2

Spontaneous generation is the belief that

Accepted Answer

A)   germs cause infectious diseases.
B)   microbes are diverse and ubiquitous.
C)   microbes placed in an infusion can grow in it.
D)   aseptic techniques reduce microbes in medical settings.
E)   living things arise from nonliving matter.F) C) and E)
G) B) and E)

Question 3

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 4

A scientist studying helminths is working with bacteria.

Accepted Answer

A) True 
 B)False

Question 5

The surgeon who advocated using disinfectants on hands and in the air prior to surgery was

Accepted Answer

A)   Joseph Lister.
B)   Ignaz Semmelweis.
C)   Robert Koch.
D)   Louis Pasteur.
E)   Antonie van Leeuwenhoek.F) A) and B)
G) B) and E)

Question 6

Which of the following is a scientific name?

Accepted Answer

A)   bacteria
B)   Protista
C)   species
D)   Bacillus subtilis
E)   bacilliF) D) and E)
G) A) and B)

Question 7

Which kingdom does not contain any eukaryotes?

Accepted Answer

A)   Monera
B)   Protista
C)   Mycetae
D)   Plantae
E)   AnimaliaF) B) and C)
G) D) and E)

Question 8

Which of the following are the main decomposers of the Earth?

Accepted Answer

A)   bacteria and fungi
B)   bacteria and viruses
C)   algae and viruses
D)   protists and fungi
E)   All organisms are decomposers.F) B) and E)
G) A) and D)

Question 9

Bacteria and fungi are important in bioremediation. These decomposers are also called ___.

Accepted Answer

A)   strict aerobes
B)   strict anaerobes
C)   saprobes
D)   predators
E)   parasitesF) B) and D)
G) A) and B)

Question 10

Which of the following diseases is transmitted by mosquitoes?

Accepted Answer

A)   diarrheal diseases
B)   tuberculosis
C)   malaria
D)   septicemia
E)   influenzaF) C) and E)
G) None of the above

Question 11

Taxonomy does not involve

Accepted Answer

A)   nomenclature.
B)   classification.
C)   taxa.
D)   identification.
E)   Koch's postulates.F) C) and D)
G) A) and C)

Question 12

The fossil record has established that prokaryotes existed on Earth for approximately two billion years before eukaryotes appeared.

Accepted Answer

A) True 
 B)False

Question 13

Cyanide is a chemical used to dissolve gold and is harmful to the environment and organisms living there. A couple of biochemists came up with the idea of using the bacteria in the genus Pseudomonas to break down the cyanide used by a gold mining company. Which term refers to this use of bacteria?

Accepted Answer

A)   bioremediation
B)   immunoextraction
C)   decomposition
D)   bioextraction
E)   biosynthesisF) A) and D)
G) A) and E)

Question 14

The microorganisms that do not have a nucleus in their cells are called

Accepted Answer

A)   decomposers.
B)   prokaryotes.
C)   pathogens.
D)   eukaryotes.
E)   fermenters.F) A) and B)
G) A) and C)

Question 15

A scientist collects grass clippings to find the source of an outbreak of tularemia is an example of working in the field of

Accepted Answer

A)   food microbiology.
B)   epidemiology.
C)   agricultural microbiology.
D)   genetic engineering.
E)   biotechnology.F) C) and D)
G) A) and C)

Question 16

All of the following pertain to photosynthesis, except

Accepted Answer

A)   it occurs only in members of the kingdom Plantae.
B)   carbon dioxide is converted to organic material.
C)   it contributes to the oxygen content in the atmosphere.
D)   it is fueled by light.
E)   it is important to each ecosystem's flow of energy and food.F) C) and E)
G) B) and E)

Question 17

Which of the following lists the correct descending taxonomic hierarchy left to right) ?

Accepted Answer

A)   family, order, class
B)   family, genus, species
C)   genus, species, family
D)   class, phylum, order
E)   kingdom, domain, phylumF) A) and D)
G) B) and E)

Question 18

All of the following contribute to the rise of emerging diseases, except

Accepted Answer

A)   the decrease in drug-resistant bacteria.
B)   human encroachment on wild habitats.
C)   changes in agricultural practices.
D)   populations are more mobile.E) A) and B)
F) A) and C)

Question 19

Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?

Accepted Answer

A)   Viruses cause human disease.
B)   Vruses are composed of cells that lack nuclei.
C)   Viruses cannot be seen without an electron microscope.
D)   Viruses contain genetic material.
E)   Viruses lack cell structure.F) A) and E)
G) None of the above

Question 20

One distinguishing characteristic of the archaea is that they live in extreme environments.

Accepted Answer

A) True 
 B)False

Exam 1: The Main Themes of Microbiology

Spontaneous generation is the belief that

Correct AnswerverifiedShow Answer

One distinguishing characteristic of the archaea is that they live in extreme environments.

Correct AnswerverifiedShow Answer

The fossil record has established that prokaryotes existed on Earth for approximately two billion years before eukaryotes appeared.

Correct AnswerverifiedShow Answer

Cyanide is a chemical used to dissolve gold and is harmful to the environment and organisms living there. A couple of biochemists came up with the idea of using the bacteria in the genus Pseudomonas to break down the cyanide used by a gold mining company. Which term refers to this use of bacteria?

Correct AnswerverifiedShow Answer

Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?

Correct AnswerverifiedShow Answer

The microorganisms that do not have a nucleus in their cells are called

Correct AnswerverifiedShow Answer

All of the following pertain to photosynthesis, except

Correct AnswerverifiedShow Answer

A scientist studying helminths is working with bacteria.

Correct AnswerverifiedShow Answer

Which of the following are the main decomposers of the Earth?

Correct AnswerverifiedShow Answer

The surgeon who advocated using disinfectants on hands and in the air prior to surgery was

Correct AnswerverifiedShow Answer

Which of the following is a scientific name?

Correct AnswerverifiedShow Answer

Taxonomy does not involve

Correct AnswerverifiedShow Answer

Which of the following lists the correct descending taxonomic hierarchy left to right) ?

Correct AnswerverifiedShow Answer

Which kingdom does not contain any eukaryotes?

Correct AnswerverifiedShow Answer

Bacteria and fungi are important in bioremediation. These decomposers are also called ___.

Correct AnswerverifiedShow Answer

A scientist collects grass clippings to find the source of an outbreak of tularemia is an example of working in the field of

Correct AnswerverifiedShow Answer

Which of the following diseases is transmitted by mosquitoes?

Correct AnswerverifiedShow Answer

Once an organism is assigned to a particular taxonomic hierarchy, it is permanent and cannot be revised.

Correct AnswerverifiedShow Answer

All of the following contribute to the rise of emerging diseases, 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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified