Question 1

In the three-domain model, the bacterial ancestor of mitochondria derives from ancient

Accepted Answer

A)  fungi. 
B)  cyanobacteria. 
C)  respiring bacteria. 
D)  archaea. 
E)  protists. 
A)  fungi. 
B)  cyanobacteria. 
C)  respiring bacteria. 
D)  archaea. 
E)  protists.

Question 2

Define the term "endosymbiont" and give an example of an endosymbiotic relationship found in nature.

Accepted Answer

An endosymbiont is an organism living sy

Question 3

How do microbes help in the extraction of minerals?

Accepted Answer

Several lithotrophic bacteria help in th

Question 4

Describe the effects of three microbial diseases that have significantly affected human populations throughout history.

Accepted Answer

Answers may vary. Some examples include

Question 5

Which of the following organelles are thought to be of prokaryotic origin?

Accepted Answer

A)  chloroplast 
B)  mitochondria 
C)  nucleus 
D)  chloroplast and mitochondria 
E)  chloroplast and nucleus 
A)  chloroplast 
B)  mitochondria 
C)  nucleus 
D)  chloroplast and mitochondria 
E)  chloroplast and nucleus

Question 6

The use of agar as a more robust gelling agent in solid media was suggested by

Accepted Answer

A)  Robert Koch. 
B)  Ignaz Semmelweis. 
C)  Angelina Hesse. 
D)  Louis Pasteur. 
E)  Richard Petri. 
A)  Robert Koch. 
B)  Ignaz Semmelweis. 
C)  Angelina Hesse. 
D)  Louis Pasteur. 
E)  Richard Petri.

Question 7

Which commonly used microbial classification advancement led to the tree by Carl Woese in 1977?

Accepted Answer

A)  comparative genomics 
B)  microscopy 
C)  X-ray diffraction 
D)  protein sequencing 
E)  16S rRNA sequencing 
A)  comparative genomics 
B)  microscopy 
C)  X-ray diffraction 
D)  protein sequencing 
E)  16S rRNA sequencing

Question 8

Define "attenuation" and describe some mechanisms used to attenuate pathogens.

Accepted Answer

Attenuation results in a weakened organi

Question 9

You have isolated a bacterium that you believe to be the causative agent of a new disease in frogs. How would you test the third of Koch's postulates?

Accepted Answer

A)  Determine the shape of the bacterial cells. 
B)  Inject the bacteria into a healthy frog. 
C)  Isolate the bacterium from a sick frog. 
D)  Show that the bacterium is not present in healthy frogs. 
E)  Grow a pure culture of the bacterium outside the frog. 
A)  Determine the shape of the bacterial cells. 
B)  Inject the bacteria into a healthy frog. 
C)  Isolate the bacterium from a sick frog. 
D)  Show that the bacterium is not present in healthy frogs. 
E)  Grow a pure culture of the bacterium outside the frog.

In the three-domain model, the bacterial ancestor of mitochondria derives from ancient

Define the term "endosymbiont" and give an example of an endosymbiotic relationship found in nature.

How do microbes help in the extraction of minerals?

Describe the effects of three microbial diseases that have significantly affected human populations throughout history.

Which of the following organelles are thought to be of prokaryotic origin?

The use of agar as a more robust gelling agent in solid media was suggested by

Which commonly used microbial classification advancement led to the tree by Carl Woese in 1977?

Define "attenuation" and describe some mechanisms used to attenuate pathogens.

You have isolated a bacterium that you believe to be the causative agent of a new disease in frogs. How would you test the third of Koch's postulates?

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

Filters

Exam 1: Microbial Life: Origin and Discovery

In the three-domain model, the bacterial ancestor of mitochondria derives from ancient

Define the term "endosymbiont" and give an example of an endosymbiotic relationship found in nature.

How do microbes help in the extraction of minerals?

Describe the effects of three microbial diseases that have significantly affected human populations throughout history.

Which of the following organelles are thought to be of prokaryotic origin?

The use of agar as a more robust gelling agent in solid media was suggested by

Which commonly used microbial classification advancement led to the tree by Carl Woese in 1977?

Define "attenuation" and describe some mechanisms used to attenuate pathogens.

You have isolated a bacterium that you believe to be the causative agent of a new disease in frogs. How would you test the third of Koch's postulates?

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

Filters