Question 1

A feature unique to some archaeal plasma membranes is that they may

Accepted Answer

A)  consist of a lipid bilayer that lacks integral membrane proteins. 
B)  consist of a lipid bilayer with embedded proteins. 
C)  contain sterols such as cholesterol. 
D)  consist of a lipid monolayer. 
A)  consist of a lipid bilayer that lacks integral membrane proteins. 
B)  consist of a lipid bilayer with embedded proteins. 
C)  contain sterols such as cholesterol. 
D)  consist of a lipid monolayer.

Question 2

Endospores represent a challenge to the fields of industrial and medical microbiology because

Accepted Answer

A)  they are resistant to harsh environments, thus allowing survival of endospore-forming organisms under conditions in which non-endospore-forming cells would not survive. 
B)  endospore-forming organisms are often dangerous pathogens. 
C)  endospores are significantly smaller than vegetative cells. 
D)  endospores are resistant to harsh environments, thus allowing survival of endospore-forming organisms under conditions in which non-endospore-forming cells would not survive, and endospore-forming organisms are often dangerous pathogens 
A)  they are resistant to harsh environments, thus allowing survival of endospore-forming organisms under conditions in which non-endospore-forming cells would not survive. 
B)  endospore-forming organisms are often dangerous pathogens. 
C)  endospores are significantly smaller than vegetative cells. 
D)  endospores are resistant to harsh environments, thus allowing survival of endospore-forming organisms under conditions in which non-endospore-forming cells would not survive, and endospore-forming organisms are often dangerous pathogens

Question 3

Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.

Accepted Answer

A) True 
 B)False

Question 4

Sedimentation coefficients are proportional to the molecular weight of a particle and are not affected by the volume and shape of the particle.

Accepted Answer

A) True 
 B)False

Question 5

Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called

Accepted Answer

A)  streptococci. 
B)  staphylococci. 
C)  tetrads. 
D)  sarcinae. 
A)  streptococci. 
B)  staphylococci. 
C)  tetrads. 
D)  sarcinae.

Question 6

When the cell wall is removed from a Gram-negative bacterium without removing the outer membrane, the resulting form is called a(n) __________.

Accepted Answer

The answer of When the cell wall is removed from...

Exam 3: Bacteria and Archaea

A feature unique to some archaeal plasma membranes is that they may

Endospores represent a challenge to the fields of industrial and medical microbiology because

Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.

Sedimentation coefficients are proportional to the molecular weight of a particle and are not affected by the volume and shape of the particle.

Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called

When the cell wall is removed from a Gram-negative bacterium without removing the outer membrane, the resulting form is called a(n) __________.

The Evolution of Microorganisms and Microbiology

The Study of Microbial Structure: Microscopy and Specimen Preparation

Eukaryotic Cell Structure and Function

Viruses and Other Acellular Infectious Agents

Microbial Nutrition

Microbial Growth

Control of Microorganisms in the Environment

Introduction to Metabolism

Catabolism Energy Release and Conservation

Anabolism the Use of Energy in Biosynthesis

Genes Structure, Replication, and Expression

Microbial Genetics Regulation of Gene Expression

Microbial Genetics Mechanisms of Genetic Variation

Recombinant Dna Technology

Microbial Genomics

Microbial Taxonomy and the Evolution of Diversity

The Archaea

Bacteria the Deinococci and Nonproteobacteria Gram Negatives

Bacteria the Proteobacteria

Bacteria the Low G+C Gram Positives

Bacteria the High G+C Gram Positives

The Protists

The Fungi Eumycota

The Viruses

Biogeochemical Cycling

Methods in Microbial Ecology

Microorganisms in Marine and Freshwater Ecosystems

Microorganisms in Terrestrial Ecosystems

Microbial Interactions

Infection and Pathogenicity

Nonspecific Innate Host Resistance

Specific Adaptive Immunity

Antimicrobial Chemotherapy

Clinical Microbiology and Immunology

Epidemiology and Public Health Microbiology

Human Diseases Caused by Viruses and Prions

Human Diseases Caused by Bacteria

Human Diseases Caused by Fungi and Protists

Microbiology of Food

Industrial Microbiology

Applied Environmental Microbiology

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