Question 1

Koch's postulates were

Accepted Answer

A)  specific to anthrax and tuberculosis but don't apply to other diseases 
B)  designed to establish a casual relationship between a causative microbe and a disease 
C)  strict in that microorganisms isolated from experimentally inoculated hosts had to be different from the microorganism that was introduced into the host. 
D)  interpreted as many organisms could cause the same disease 
A)  specific to anthrax and tuberculosis but don't apply to other diseases 
B)  designed to establish a casual relationship between a causative microbe and a disease 
C)  strict in that microorganisms isolated from experimentally inoculated hosts had to be different from the microorganism that was introduced into the host. 
D)  interpreted as many organisms could cause the same disease

Question 2

Which of the following statements about microbes is true?

Accepted Answer

A)  prions are proteins without any nucleic acid 
B)  viroids are single-celled microscopic organisms 
C)  protozoa are nucleic acid without a protein coat 
D)  algae depend on the metabolic processes of host cells 
A)  prions are proteins without any nucleic acid 
B)  viroids are single-celled microscopic organisms 
C)  protozoa are nucleic acid without a protein coat 
D)  algae depend on the metabolic processes of host cells

Question 3

Many disease-causing microbes do not cause disease in every host. Describe a possible reason for why one person gets an infection from the same bacteria that doesn't affect other people.

Accepted Answer

There are many reasons that an occasiona

Question 4

Microbiology continues to be an important research field for all of the following reasons,except:

Accepted Answer

A)  all infectious diseases have had vaccines developed and therefore can be prevented 
B)  many forms of genetic engineering depends on microorganisms 
C)  new and emerging diseases like AIDS and SARS 
D)  microorganisms can be used as factories to cheaply produce drugs, hormones and vaccines 
A)  all infectious diseases have had vaccines developed and therefore can be prevented 
B)  many forms of genetic engineering depends on microorganisms 
C)  new and emerging diseases like AIDS and SARS 
D)  microorganisms can be used as factories to cheaply produce drugs, hormones and vaccines

Question 5

Before Ehrilich began a systematic search for a chemical to kill specific bacteria,the only chemotherapies available were substances derived from medicinal plants. What distinguished Ehrlich's chemotherapy research?

Accepted Answer

A)  he systematically tested hundred of compounds, for their ability to destroy specific bacteria without damaging surrounding tissue 
B)  he used metals, such as antimony and mercury to treat diseases 
C)  he inoculated his own son with fluid from a cowpox blister 
D)  he introduced cinchona tree bark, a native American remedy to treat malaria 
A)  he systematically tested hundred of compounds, for their ability to destroy specific bacteria without damaging surrounding tissue 
B)  he used metals, such as antimony and mercury to treat diseases 
C)  he inoculated his own son with fluid from a cowpox blister 
D)  he introduced cinchona tree bark, a native American remedy to treat malaria

Question 6

A substance derived from one microorganism that kills or restricts the growth of other microorganisms is best described as a

Accepted Answer

A)  poison 
B)  antibody 
C)  vaccine 
D)  antibiotic 
A)  poison 
B)  antibody 
C)  vaccine 
D)  antibiotic

Question 7

Microbes live in us,on us and nearly everywhere around us. Which of the following activities are microbes involved in?

Accepted Answer

A)  decomposing dead organisms 
B)  aiding the digestive processes of grazing animals 
C)  capturing energy from the sun 
D)  all of the above 
A)  decomposing dead organisms 
B)  aiding the digestive processes of grazing animals 
C)  capturing energy from the sun 
D)  all of the above

Question 8

Microbes have played important roles in genetics and in the discovery of DNA as the genetic material. What discoveries depended on bacteria?

Accepted Answer

A)  that the ability for a previously harmless bacteria to change into a disease causing bacteria was due to DNA 
B)  the discovery of the intracellular reproduction of tobacco mosaic virus 
C)  the development of the microscope 
D)  the identification of a virus that causes yellow fever 
A)  that the ability for a previously harmless bacteria to change into a disease causing bacteria was due to DNA 
B)  the discovery of the intracellular reproduction of tobacco mosaic virus 
C)  the development of the microscope 
D)  the identification of a virus that causes yellow fever

Question 9

All of the following are true statements about the development of antibiotics,except:

Accepted Answer

A)  most bacteria that stopped the growth of other bacteria by producing antibiotics were soil bacteria 
B)  Fleming noticed that a contaminant mold (Penicillium) prevented the growth of bacteria adjacent to itself 
C)  an antibiotic was discovered in the sea after a scientist noted the absence of disease causing organisms in the seawater where the sewage entered 
D)  sulfa drugs did not prove to be useful as the body converted them into inactive molecules 
A)  most bacteria that stopped the growth of other bacteria by producing antibiotics were soil bacteria 
B)  Fleming noticed that a contaminant mold (Penicillium) prevented the growth of bacteria adjacent to itself 
C)  an antibiotic was discovered in the sea after a scientist noted the absence of disease causing organisms in the seawater where the sewage entered 
D)  sulfa drugs did not prove to be useful as the body converted them into inactive molecules

Question 10

Microbiologists investigate problems by designing and carrying out experiments. What is true about the scientific method?

Accepted Answer

A)  a hypothesis is the definitive explanation to account for the observation and therefore does not need to be tested 
B)  a prediction is the factor that can change but is prevented from changing during the duration of the experiment 
C)  a good hypothesis is one that offers the simplest most reasonable explanation and can be tested. 
D)  the goal of an experiment is to prove that scientists are always correct in their predictions 
A)  a hypothesis is the definitive explanation to account for the observation and therefore does not need to be tested 
B)  a prediction is the factor that can change but is prevented from changing during the duration of the experiment 
C)  a good hypothesis is one that offers the simplest most reasonable explanation and can be tested. 
D)  the goal of an experiment is to prove that scientists are always correct in their predictions

Question 11

Viruses were initially identified as small infectious agents that could pass through filters. How was it believed that these molecules could survive?

Accepted Answer

A)  they had small compact structures that allowed for the production of metabolites and replication 
B)  they survived on the metabolites and poisons that pass through the filter 
C)  they borrowed the use of existing metabolic and replicative mechanisms of the host cells they infected 
D)  they are capable of capturing energy from the sun 
A)  they had small compact structures that allowed for the production of metabolites and replication 
B)  they survived on the metabolites and poisons that pass through the filter 
C)  they borrowed the use of existing metabolic and replicative mechanisms of the host cells they infected 
D)  they are capable of capturing energy from the sun

Question 12

A pure culture refers to

Accepted Answer

A)  a culture containing bacteria that all have the same shape 
B)  a culture which has never been used to inoculate a patient 
C)  a culture which causes only a single disease 
D)  a culture which contains only a single type of organism 
A)  a culture containing bacteria that all have the same shape 
B)  a culture which has never been used to inoculate a patient 
C)  a culture which causes only a single disease 
D)  a culture which contains only a single type of organism

Question 13

Bacteriophages are

Accepted Answer

A)  modified antibiotics that were used in the Soviet Union 
B)  viruses that attack and kill specific kinds of bacteria including antibiotic resistant bacteria 
C)  used to introduce genes in gene therapy 
D)  some of the genes in the human genome 
A)  modified antibiotics that were used in the Soviet Union 
B)  viruses that attack and kill specific kinds of bacteria including antibiotic resistant bacteria 
C)  used to introduce genes in gene therapy 
D)  some of the genes in the human genome

Question 14

Vaccines are

Accepted Answer

A)  specific disease-causing molecules that incorporate into cells 
B)  the causative agent of Black Death 
C)  selective chemicals used to treat infectious disease 
D)  preparations that establish immunity to a disease 
A)  specific disease-causing molecules that incorporate into cells 
B)  the causative agent of Black Death 
C)  selective chemicals used to treat infectious disease 
D)  preparations that establish immunity to a disease

Koch's postulates were

Which of the following statements about microbes is true?

Many disease-causing microbes do not cause disease in every host. Describe a possible reason for why one person gets an infection from the same bacteria that doesn't affect other people.

Microbiology continues to be an important research field for all of the following reasons,except:

Before Ehrilich began a systematic search for a chemical to kill specific bacteria,the only chemotherapies available were substances derived from medicinal plants. What distinguished Ehrlich's chemotherapy research?

A substance derived from one microorganism that kills or restricts the growth of other microorganisms is best described as a

Microbes live in us,on us and nearly everywhere around us. Which of the following activities are microbes involved in?

Microbes have played important roles in genetics and in the discovery of DNA as the genetic material. What discoveries depended on bacteria?

All of the following are true statements about the development of antibiotics,except:

Microbiologists investigate problems by designing and carrying out experiments. What is true about the scientific method?

Viruses were initially identified as small infectious agents that could pass through filters. How was it believed that these molecules could survive?

A pure culture refers to

Bacteriophages are

Vaccines are

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: the Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Immunology I: Basic Principles of Adaptive Immunity and Immunization

Immunolgy Ii: Immunological Disorders and Tests

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, lymphatic and Systemic Disease

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters

Exam 1: Scope and History of Microbiology

Koch's postulates were

Which of the following statements about microbes is true?

Many disease-causing microbes do not cause disease in every host. Describe a possible reason for why one person gets an infection from the same bacteria that doesn't affect other people.

Microbiology continues to be an important research field for all of the following reasons,except:

Before Ehrilich began a systematic search for a chemical to kill specific bacteria,the only chemotherapies available were substances derived from medicinal plants. What distinguished Ehrlich's chemotherapy research?

A substance derived from one microorganism that kills or restricts the growth of other microorganisms is best described as a

Microbes live in us,on us and nearly everywhere around us. Which of the following activities are microbes involved in?

Microbes have played important roles in genetics and in the discovery of DNA as the genetic material. What discoveries depended on bacteria?

All of the following are true statements about the development of antibiotics,except:

Microbiologists investigate problems by designing and carrying out experiments. What is true about the scientific method?

Viruses were initially identified as small infectious agents that could pass through filters. How was it believed that these molecules could survive?

A pure culture refers to

Bacteriophages are

Vaccines are

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: the Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Immunology I: Basic Principles of Adaptive Immunity and Immunization

Immunolgy Ii: Immunological Disorders and Tests

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, lymphatic and Systemic Disease

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters