Question 1

In which type of culture(s) does one find a closed system?

Accepted Answer

A)  chemostat cultures 
B)  batch culture 
C)  continuous culture 
D)  all of the above 
A)  chemostat cultures 
B)  batch culture 
C)  continuous culture 
D)  all of the above

Question 2

Organisms living in boiling springs must be rapid growers with fast doubling times.

Accepted Answer

A) True 
 B)False

Question 3

With a few minor exceptions, the time required for a bacterial growth cycle is generally the same, regardless of the bacterial species.

Accepted Answer

A) True 
 B)False

Question 4

In general, compared with most prokaryotic microorganisms, most eukaryotic microorganisms grow

Accepted Answer

A)  faster. 
B)  slower. 
C)  at about the same rate. 
D)  at rates that are too variable to make an adequate comparison. 
A)  faster. 
B)  slower. 
C)  at about the same rate. 
D)  at rates that are too variable to make an adequate comparison.

Question 5

Which of these statements is/are TRUE?

Accepted Answer

A)  Nonphototrophic organisms are able to grow at higher temperatures than phototrophic organisms. 
B)  In general, prokaryotic organisms can grow at higher temperatures than eukaryotic organisms. 
C)  The most thermophilic prokaryotes are species of Archaea. 
D)  All of the above are true. 
A)  Nonphototrophic organisms are able to grow at higher temperatures than phototrophic organisms. 
B)  In general, prokaryotic organisms can grow at higher temperatures than eukaryotic organisms. 
C)  The most thermophilic prokaryotes are species of Archaea. 
D)  All of the above are true.

Question 6

An increase in microbial density is synonymous with growth.

Accepted Answer

A) True 
 B)False

Question 7

Cold environments are usually sterile.

Accepted Answer

A) True 
 B)False

Question 8

The number of colonies obtained in a plate count does NOT depend on the

Accepted Answer

A)  size of the colonies. 
B)  inoculum volume. 
C)  incubation time. 
D)  type of culture medium. 
A)  size of the colonies. 
B)  inoculum volume. 
C)  incubation time. 
D)  type of culture medium.

Question 9

Population growth is measured by

Accepted Answer

A)  changes in the number of cells and in the cell mass. 
B)  changes in the number of cells. 
C)  changes in the cell mass. 
D)  changes in the amount of nutrient(s) in the culture medium. 
A)  changes in the number of cells and in the cell mass. 
B)  changes in the number of cells. 
C)  changes in the cell mass. 
D)  changes in the amount of nutrient(s) in the culture medium.

Question 10

The major shape- determining protein among prokaryotes is

Accepted Answer

A)  MinE. 
B)  MreB. 
C)  ZipA. 
D)  FtsZ. 
A)  MinE. 
B)  MreB. 
C)  ZipA. 
D)  FtsZ.

Question 11

Organisms able to live in environments with high sugar concentrations are

Accepted Answer

A)  halotolerant. 
B)  xerophiles. 
C)  osmophiles. 
D)  none of the above. 
A)  halotolerant. 
B)  xerophiles. 
C)  osmophiles. 
D)  none of the above.

Exam 5: Microbial Growth

In which type of culture(s) does one find a closed system?

Organisms living in boiling springs must be rapid growers with fast doubling times.

With a few minor exceptions, the time required for a bacterial growth cycle is generally the same, regardless of the bacterial species.

In general, compared with most prokaryotic microorganisms, most eukaryotic microorganisms grow

Which of these statements is/are TRUE?

An increase in microbial density is synonymous with growth.

Cold environments are usually sterile.

The number of colonies obtained in a plate count does NOT depend on the

Population growth is measured by

The major shape- determining protein among prokaryotes is

Organisms able to live in environments with high sugar concentrations are

Microorganisms and Microbiology

A Brief Journey to the Microbial World

Cell Structure and Function in Bacteria and Archaea

Nutrition, Culture, and Metabolism of Microorganisms

Molecular Biology of Bacteria

Archael and Eukaryotic Molecular Biology

Regulation of Gene Expression

Viruses and Virology

Genetics of Bacteria and Arachaea

Genetic Engineering

Microbial Genomics

Phototrophy, Chemolithotrophy, and Major Biosyntheses

Catabolism of Organic Compounds

Commercial Products and Biotechnology

Microbial Evolution and Systematics

Bacteria: the Proteobacteria

Other Bacteria

Archaea

Eukaryotic Cell Biology and Eukaryotic Microorganisms

Viral Diversity

Methods in Microbial Ecology

Major Microbial Habitats and Diversity

Nutrient Cycles, Biodegradation, and Bioremediation

Microbial Symbioses

Microbial Growth Control

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology and Immunology

Epidemiology

Person-To-Person Microbial Diseases

Vectorborne and Soilborne Microbial Pathogens

Wastewater Treatment, Water Purification, and Waterborne Microbial Diseases

Food Preservation and Foodborne Microbial Diseases

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