Question 1

An unpressurized autoclave would not be able to sterilize a growth medium with contaminating bacteria but could still pasteurize it.

Accepted Answer

A) True 
 B)False

Question 2

An antiseptic (or germicide)is distinguished from other sterilizing compounds by

Accepted Answer

A) being able to inhibit growth of microorganisms but not necessarily kill all of them. 
B) being able to be used on living tissues without harm. 
C) its ability to protect from subsequent microbial infections-not just initial sterilization. 
D) killing all bacteria and microscopic fungi but not being effective against viruses. 
A) being able to inhibit growth of microorganisms but not necessarily kill all of them. 
B) being able to be used on living tissues without harm. 
C) its ability to protect from subsequent microbial infections-not just initial sterilization. 
D) killing all bacteria and microscopic fungi but not being effective against viruses.

Question 3

Where would it be best to isolate bacteria from to study the mechanism of the sodium motive force?

Accepted Answer

A) human gut 
B) hot springs 
C) soda lakes 
D) volcanoes 
A) human gut 
B) hot springs 
C) soda lakes 
D) volcanoes

Question 4

Generation of new bacillus-shaped cells starts with one cell elongating and terminates when split into two separate bacilli.

Accepted Answer

A) True 
 B)False

Question 5

A non-aerated or shaken liquid growth medium inoculated with a bacterium is one of the best ways to culture an obligate anaerobe.

Accepted Answer

A) True 
 B)False

Question 6

Growing bacteria that degrade an environmental pollutant,which is also toxic to the cells at artificially high concentrations,might require ________ to obtain a sufficient population for biochemistry studies.

Accepted Answer

A) a continuous batch culture 
B) a second growth substrate to keep the culture in exponential growth phase 
C) steady state growth kinetics 
D) the use of a chemostat 
A) a continuous batch culture 
B) a second growth substrate to keep the culture in exponential growth phase 
C) steady state growth kinetics 
D) the use of a chemostat

Question 7

Knowing the concentration of microorganisms in a sample is often an important consideration for environmental,industrial,and medical microbiologists,yet a microscope is sometimes not used to accomplish this task.Explain five major limitations to using a light microscope to directly count microorganisms.

Accepted Answer

All of the following eight are potential

An unpressurized autoclave would not be able to sterilize a growth medium with contaminating bacteria but could still pasteurize it.

An antiseptic (or germicide)is distinguished from other sterilizing compounds by

Where would it be best to isolate bacteria from to study the mechanism of the sodium motive force?

Generation of new bacillus-shaped cells starts with one cell elongating and terminates when split into two separate bacilli.

A non-aerated or shaken liquid growth medium inoculated with a bacterium is one of the best ways to culture an obligate anaerobe.

Growing bacteria that degrade an environmental pollutant,which is also toxic to the cells at artificially high concentrations,might require ________ to obtain a sufficient population for biochemistry studies.

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

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

Exam 5: Microbial Growth and Control

An unpressurized autoclave would not be able to sterilize a growth medium with contaminating bacteria but could still pasteurize it.

An antiseptic (or germicide)is distinguished from other sterilizing compounds by

Where would it be best to isolate bacteria from to study the mechanism of the sodium motive force?

Generation of new bacillus-shaped cells starts with one cell elongating and terminates when split into two separate bacilli.

A non-aerated or shaken liquid growth medium inoculated with a bacterium is one of the best ways to culture an obligate anaerobe.

Growing bacteria that degrade an environmental pollutant,which is also toxic to the cells at artificially high concentrations,might require ________ to obtain a sufficient population for biochemistry studies.

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

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