Question 1

Microbial control in wastewaters would most logically be a part of

Accepted Answer

A)  microbial genetics. 
B)  aquatic microbiology. 
C)  medical microbiology. 
D)  bacterial energetics. 
A)  microbial genetics. 
B)  aquatic microbiology. 
C)  medical microbiology. 
D)  bacterial energetics. B

Question 2

Differential selection and reproduction of phenotypes occurs during a process called

Accepted Answer

A)  cellular differentiation. 
B)  evolution. 
C)  growth. 
D)  transformation. 
A)  cellular differentiation. 
B)  evolution. 
C)  growth. 
D)  transformation. B

Question 3

Microbial ecology is the study of

Accepted Answer

A)  microbial processes in the rhizosphere that benefit plant growth. 
B)  the diversity and activities of microorganisms. 
C)  the grouping and classifying of microorganisms. 
D)  microorganisms in their natural environments. 
A)  microbial processes in the rhizosphere that benefit plant growth. 
B)  the diversity and activities of microorganisms. 
C)  the grouping and classifying of microorganisms. 
D)  microorganisms in their natural environments. D

Question 4

Which of the following is NOT an accomplishment of Louis Pasteur?

Accepted Answer

A)  determined that the alcohol-making process was mediated by microbial fermentation and thus refuted the theory of spontaneous generation 
B)  developed enrichment culture techniques 
C)  developed heat sterilization techniques that involved the creation of a specialized swan-necked flask 
D)  developed the first rabies vaccine and treated thousands of individuals 
A)  determined that the alcohol-making process was mediated by microbial fermentation and thus refuted the theory of spontaneous generation 
B)  developed enrichment culture techniques 
C)  developed heat sterilization techniques that involved the creation of a specialized swan-necked flask 
D)  developed the first rabies vaccine and treated thousands of individuals

Question 5

Microorganisms play key roles in the cycling of important nutrients in plant nutrition,particularly those of

Accepted Answer

A)  carbon. 
B)  nitrogen. 
C)  sulfur. 
D)  carbon, nitrogen, and sulfur. 
A)  carbon. 
B)  nitrogen. 
C)  sulfur. 
D)  carbon, nitrogen, and sulfur.

Question 6

Regarding early life on Earth,

Accepted Answer

A)  microbial life existed for billions of years before plant and animal life. 
B)  microbial life existed long before animals but has been around for about the same amount of time as plants. 
C)  microbial life, plant life, and animal life all appeared at about the same time. 
D)  it is impossible to determine which type of life first appeared. 
A)  microbial life existed for billions of years before plant and animal life. 
B)  microbial life existed long before animals but has been around for about the same amount of time as plants. 
C)  microbial life, plant life, and animal life all appeared at about the same time. 
D)  it is impossible to determine which type of life first appeared.

Question 7

Predict how Pasteur's conclusions on spontaneous generation with swan flasks would have changed if he worked with and maintained the flasks in a sterile laminar flow hood.

Accepted Answer

A)  Sterilization of the swan flask solutions would not have been necessary to reject spontaneous generation. If he did sterilize the flasks, the spontaneous generation hypothesis would have been supported. 
B)  His incubation times would not have been sufficient to refute spontaneous generation. 
C)  Pasteur's flasks never would have putrefied, and the experiment would not have refuted spontaneous generation. 
D)  Viruses would have still been present, and his conclusion would have been unchanged. 
A)  Sterilization of the swan flask solutions would not have been necessary to reject spontaneous generation. If he did sterilize the flasks, the spontaneous generation hypothesis would have been supported. 
B)  His incubation times would not have been sufficient to refute spontaneous generation. 
C)  Pasteur's flasks never would have putrefied, and the experiment would not have refuted spontaneous generation. 
D)  Viruses would have still been present, and his conclusion would have been unchanged.

Question 8

Explain the nature and function of an enrichment culture.

Accepted Answer

Answers will vary,but an enrichment cult

Question 9

Determine which outcome is LEAST likely for a microorganism being motile.

Accepted Answer

A)  avoidance of predation by bacteriovores 
B)  maintaining osmotic balance within a salt gradient 
C)  movement towards growth substrates 
D)  transfer of plasmids to progeny 
A)  avoidance of predation by bacteriovores 
B)  maintaining osmotic balance within a salt gradient 
C)  movement towards growth substrates 
D)  transfer of plasmids to progeny

Question 10

Developments in the fields of immunology and medical microbiology were practical extensions of the work of

Accepted Answer

A)  Sergei Winogradsky. 
B)  Antoni van Leeuwenhoek. 
C)  Joseph Lister. 
D)  Robert Koch. 
A)  Sergei Winogradsky. 
B)  Antoni van Leeuwenhoek. 
C)  Joseph Lister. 
D)  Robert Koch.

Question 11

Some microorganisms can undergo ________ in which various cell types can become specialized and arise from one parent cell type.

Accepted Answer

A)  differentiation 
B)  genetic exchange 
C)  maturation 
D)  mutagensis 
A)  differentiation 
B)  genetic exchange 
C)  maturation 
D)  mutagensis

Question 12

Deduce why viruses are excluded from the ribosomal RNA-based tree of life.

Accepted Answer

A)  Some viruses contain multiple strands of RNA. 
B)  Their genetic elements cannot be sequenced. 
C)  They can infect other organisms, which complicates the genetic comparisons. 
D)  They lack ribosomal RNA. 
A)  Some viruses contain multiple strands of RNA. 
B)  Their genetic elements cannot be sequenced. 
C)  They can infect other organisms, which complicates the genetic comparisons. 
D)  They lack ribosomal RNA.

Question 13

Explain why only anaerobic bacteria inhabited Earth for the first two billion years of its existence.

Accepted Answer

The key idea is an a

Question 14

How would the presence of endospores in Louis Pasteur's nutrient solutions have affected his conclusions about spontaneous generation?

Accepted Answer

Answers will vary,but ultimate

Question 15

Cyanobacteria and purple bacteria both obtain energy from light.However,only the ________ are capable of releasing ________.

Accepted Answer

A)  cyanobacteria / organic compounds 
B)  cyanobacteria / oxygen 
C)  purple bacteria / organic compounds 
D)  purple bacteria / oxygen 
A)  cyanobacteria / organic compounds 
B)  cyanobacteria / oxygen 
C)  purple bacteria / organic compounds 
D)  purple bacteria / oxygen

Question 16

All microorganisms require molecular oxygen to carry on life functions.

Accepted Answer

A) True 
 B)False

Question 17

List three contributions of Ferdinand Cohn to the development of microbiology.

Accepted Answer

Answers could possibly include: founding

Question 18

Mycobacterium tuberculosis is very difficult to stain because of the

Accepted Answer

A)  presence of ribosomes in the cytoplasm. 
B)  location of the DNA within the cell. 
C)  large amounts of a waxy lipid present in its cell wall. 
D)  lack of a cell wall. 
A)  presence of ribosomes in the cytoplasm. 
B)  location of the DNA within the cell. 
C)  large amounts of a waxy lipid present in its cell wall. 
D)  lack of a cell wall.

Question 19

Groups of cells derived from a single parent cell by successive cell divisions are known as microbial ________ and which live in environments known as microbial ________.

Accepted Answer

A)  communities / habitats 
B)  communities / ecosystems 
C)  populations / habitats 
D)  populations / ecosystems 
A)  communities / habitats 
B)  communities / ecosystems 
C)  populations / habitats 
D)  populations / ecosystems

Question 20

Which statement is TRUE?

Accepted Answer

A)  Populations are assemblages of microbial communities. 
B)  Microbial communities are assemblages of populations. 
C)  Habitats are assemblages of microbial communities. 
D)  Populations are assemblages of habitats. 
A)  Populations are assemblages of microbial communities. 
B)  Microbial communities are assemblages of populations. 
C)  Habitats are assemblages of microbial communities. 
D)  Populations are assemblages of habitats.

Exam 1: Microorganisms and Microbiology

Microbial control in wastewaters would most logically be a part of

Differential selection and reproduction of phenotypes occurs during a process called

Microbial ecology is the study of

Which of the following is NOT an accomplishment of Louis Pasteur?

Microorganisms play key roles in the cycling of important nutrients in plant nutrition,particularly those of

Regarding early life on Earth,

Predict how Pasteur's conclusions on spontaneous generation with swan flasks would have changed if he worked with and maintained the flasks in a sterile laminar flow hood.

Explain the nature and function of an enrichment culture.

Determine which outcome is LEAST likely for a microorganism being motile.

Developments in the fields of immunology and medical microbiology were practical extensions of the work of

Some microorganisms can undergo ________ in which various cell types can become specialized and arise from one parent cell type.

Deduce why viruses are excluded from the ribosomal RNA-based tree of life.

Explain why only anaerobic bacteria inhabited Earth for the first two billion years of its existence.

How would the presence of endospores in Louis Pasteur's nutrient solutions have affected his conclusions about spontaneous generation?

Cyanobacteria and purple bacteria both obtain energy from light.However,only the ________ are capable of releasing ________.

All microorganisms require molecular oxygen to carry on life functions.

List three contributions of Ferdinand Cohn to the development of microbiology.

Mycobacterium tuberculosis is very difficult to stain because of the

Groups of cells derived from a single parent cell by successive cell divisions are known as microbial ________ and which live in environments known as microbial ________.

Which statement is TRUE?

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetics of Bacteria and Archaea

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

Filters

Cyanobacteria and purple bacteria both obtain energy from light.However,only the are capable of releasing .

Groups of cells derived from a single parent cell by successive cell divisions are known as microbial and which live in environments known as microbial .