Question 1

Disposable plasticware such as petri dishes can be sterilized using which of the following?

Accepted Answer

A)  ethylene oxide gas 
B)  steam autoclave 
C)  low-temperature, long-time pasteurization 
D)  phenol 
E)  70% ethanol 
A)  ethylene oxide gas 
B)  steam autoclave 
C)  low-temperature, long-time pasteurization 
D)  phenol 
E)  70% ethanol

Question 2

Which of the following is an important signaling molecule that controls global gene expression during starvation?

Accepted Answer

A)  cyclic AMP 
B)  ADP 
C)  ATP 
D)  glucose 
E)  water 
A)  cyclic AMP 
B)  ADP 
C)  ATP 
D)  glucose 
E)  water

Question 3

Which best describes microaerophiles?

Accepted Answer

A)  They require atmospheric oxygen levels to grow. 
B)  They cannot grow in the presence of oxygen. 
C)  They will use oxygen if it is present, but can grow even if oxygen is not present. 
D)  They require a small oxygen concentration to grow. 
E)  They can't use oxygen to grow, but oxygen won't kill them. 
A)  They require atmospheric oxygen levels to grow. 
B)  They cannot grow in the presence of oxygen. 
C)  They will use oxygen if it is present, but can grow even if oxygen is not present. 
D)  They require a small oxygen concentration to grow. 
E)  They can't use oxygen to grow, but oxygen won't kill them.

Question 4

Organisms that grow at temperatures as high as 121°C as well as high pressure are known as

Accepted Answer

A)  thermophiles. 
B)  extreme halophiles. 
C)  psychrophiles. 
D)  hyperpsychrophiles. 
E)  hyperthermophiles. 
A)  thermophiles. 
B)  extreme halophiles. 
C)  psychrophiles. 
D)  hyperpsychrophiles. 
E)  hyperthermophiles.

Question 5

Describe three mechanisms organisms use to reduce osmotic stress.

Accepted Answer

Compatible solutes can be made or import

Question 6

Which of the following have evolved to grow in conditions extremely different from those optimal for humans?

Accepted Answer

A)  psychrophiles 
B)  extremophiles 
C)  halophiles 
D)  thermophiles 
E)  acidophiles 
A)  psychrophiles 
B)  extremophiles 
C)  halophiles 
D)  thermophiles 
E)  acidophiles

Question 7

How are some organisms able to survive temporary exposures to elevated temperatures?

Accepted Answer

Some organisms exhibit heat-sh

Question 8

What alkaliphile do pink flamingos eat, and how is it involved in making the flamingo pink?

Accepted Answer

The cyanobacterium Spirulina imparts a p

Question 9

Microbes accumulate ________ in the cell to prevent cell water loss in a hypertonic environment.

Accepted Answer

A)  water 
B)  proteins 
C)  sugars 
D)  protons 
E)  compatible solutes 
A)  water 
B)  proteins 
C)  sugars 
D)  protons 
E)  compatible solutes

Question 10

What piece of equipment is represented by the following schematic diagram?

Accepted Answer

A)  a membrane filtration device 
B)  a pressure cooker 
C)  an autoclave 
D)  a biological safety cabinet 
E)  a food irradiation device 
A)  a membrane filtration device 
B)  a pressure cooker 
C)  an autoclave 
D)  a biological safety cabinet 
E)  a food irradiation device

Disposable plasticware such as petri dishes can be sterilized using which of the following?

Which of the following is an important signaling molecule that controls global gene expression during starvation?

Which best describes microaerophiles?

Organisms that grow at temperatures as high as 121°C as well as high pressure are known as

Describe three mechanisms organisms use to reduce osmotic stress.

Which of the following have evolved to grow in conditions extremely different from those optimal for humans?

How are some organisms able to survive temporary exposures to elevated temperatures?

What alkaliphile do pink flamingos eat, and how is it involved in making the flamingo pink?

Microbes accumulate ________ in the cell to prevent cell water loss in a hypertonic environment.

What piece of equipment is represented by the following schematic diagram?

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

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 5: Environmental Influences and Control of Microbial Growth

Disposable plasticware such as petri dishes can be sterilized using which of the following?

Which of the following is an important signaling molecule that controls global gene expression during starvation?

Which best describes microaerophiles?

Organisms that grow at temperatures as high as 121°C as well as high pressure are known as

Describe three mechanisms organisms use to reduce osmotic stress.

Which of the following have evolved to grow in conditions extremely different from those optimal for humans?

How are some organisms able to survive temporary exposures to elevated temperatures?

What alkaliphile do pink flamingos eat, and how is it involved in making the flamingo pink?

Microbes accumulate ________ in the cell to prevent cell water loss in a hypertonic environment.

What piece of equipment is represented by the following schematic diagram?

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

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