Question 1

Mycoplasmas are unusual prokaryotes because they lack_________ .

Accepted Answer

The answer of Mycoplasmas are unusual prokaryotes because they lack_________...

Question 2

The homofermentative genus of lactic acid bacteria that contains organisms of dairy significance is

Accepted Answer

A)  Leuconostoc. 
B)  Lactococcus. 
C)  Corynebacterium. 
D)  Enterococcus. 
A)  Leuconostoc. 
B)  Lactococcus. 
C)  Corynebacterium. 
D)  Enterococcus.

Question 3

Complex polymers in the environment such as lipids, nucleic acids, and polysaccharides can be broken down by extracellular hydrolytic enzymes produced by bacteria within the genus

Accepted Answer

A)  Gemmata. 
B)  Listeria. 
C)  Geothrix. 
D)  Bacillus. 
A)  Gemmata. 
B)  Listeria. 
C)  Geothrix. 
D)  Bacillus.

Question 4

Anaerobic clostridial species live in many of the same environments as aerobic and facultatively anaerobic organisms. Explain how this is possible.

Accepted Answer

Clostridia lack a respiratory chain and

Question 5

Which of the following MIGHT be present within a cyanobacterium?

Accepted Answer

A)  gas vesicles 
B)  akinetes 
C)  phycobilins 
D)  all of the above 
A)  gas vesicles 
B)  akinetes 
C)  phycobilins 
D)  all of the above

Question 6

Some clostridia obtain energy by fermenting amino acids.

Accepted Answer

A) True 
 B)False

Question 7

Most anaerobic nitrogen fixation in the soil is accomplished by the organism_________ .

Accepted Answer

Clostridiu

Question 8

The most thermophilic of all known Bacteria is the genus

Accepted Answer

A)  Thermotoga. 
B)  Thermus. 
C)  Aquifex. 
D)  Thermocrinis. 
A)  Thermotoga. 
B)  Thermus. 
C)  Aquifex. 
D)  Thermocrinis.

Question 9

Aquifex species form pink "streamers" in Yellowstone National Park.

Accepted Answer

A) True 
 B)False

Question 10

Explain the properties of Bt- toxin, how this insecticide works, and how this molecule has been used in genetic engineering.

Accepted Answer

Bt- toxin is a potent insecticide that a

Question 11

Hyperthermophilic Bacteria cluster deep in the phylogenetic tree of Bacteria.

Accepted Answer

A) True 
 B)False

Question 12

Explain one hypothesis for why Streptomyces species produce antibiotics.

Accepted Answer

The answer of Explain one hypothesis for why Streptomyces species...

Question 13

The organisms whose fermentative production of carbon dioxide produces the characteristic holes in Swiss (Emmentaler) cheese are the

Accepted Answer

A)  lactic acid bacteria. 
B)  propionic acid bacteria. 
C)  mycobacteria. 
D)  lactobacilli. 
A)  lactic acid bacteria. 
B)  propionic acid bacteria. 
C)  mycobacteria. 
D)  lactobacilli.

Question 14

Polaribacter and Psychroflexus are two psychrophilic genera that participate in food spoilage and often cause disease in humans.

Accepted Answer

A) True 
 B)False

Question 15

The complex branched- chain hydroxy lipids present in the peptidoglycan in the cell wall of mycobacteria are known as__________ .

Accepted Answer

The answer of The complex branched- chain hydroxy lipids present...

Question 16

Some filamentous cyanobacteria can grow without light using__________ as carbon and energy sources.

Accepted Answer

A)  glucose or sucrose 
B)  vitamins 
C)  carbon dioxide 
D)  acetic acid 
A)  glucose or sucrose 
B)  vitamins 
C)  carbon dioxide 
D)  acetic acid

Question 17

The most striking property of the streptomycetes is the extent to which they produce_______.

Accepted Answer

The answer of The most striking property of the streptomycetes...

Question 18

Which of the following is TRUE of Prochloron?

Accepted Answer

A)  They share a common ancestor with cyanobacteria and chloroplasts within green plants. 
B)  They are phylogenetically in Archaea despite having peptidoglycan- like cell membranes. 
C)  They have chlorophylls a and b as well as phycobilin carotenoids. 
D)  all of the above 
A)  They share a common ancestor with cyanobacteria and chloroplasts within green plants. 
B)  They are phylogenetically in Archaea despite having peptidoglycan- like cell membranes. 
C)  They have chlorophylls a and b as well as phycobilin carotenoids. 
D)  all of the above

Question 19

In a consortium, phototrophic cells are called

Accepted Answer

A)  epibionts. 
B)  phycobilisomes. 
C)  conidia. 
D)  heliobacteria. 
A)  epibionts. 
B)  phycobilisomes. 
C)  conidia. 
D)  heliobacteria.

Question 20

How many prosthecae are produced by Verrucomicrobium and Prosthecobacter?

Accepted Answer

A)  2- several 
B)  50- 500 
C)  0- 5 
D)  any even number because they are produced in pairs 
A)  2- several 
B)  50- 500 
C)  0- 5 
D)  any even number because they are produced in pairs

Exam 18: Other Bacteria

Mycoplasmas are unusual prokaryotes because they lack_________ .

The homofermentative genus of lactic acid bacteria that contains organisms of dairy significance is

Complex polymers in the environment such as lipids, nucleic acids, and polysaccharides can be broken down by extracellular hydrolytic enzymes produced by bacteria within the genus

Anaerobic clostridial species live in many of the same environments as aerobic and facultatively anaerobic organisms. Explain how this is possible.

Which of the following MIGHT be present within a cyanobacterium?

Some clostridia obtain energy by fermenting amino acids.

Most anaerobic nitrogen fixation in the soil is accomplished by the organism_________ .

The most thermophilic of all known Bacteria is the genus

Aquifex species form pink "streamers" in Yellowstone National Park.

Explain the properties of Bt- toxin, how this insecticide works, and how this molecule has been used in genetic engineering.

Hyperthermophilic Bacteria cluster deep in the phylogenetic tree of Bacteria.

Explain one hypothesis for why Streptomyces species produce antibiotics.

The organisms whose fermentative production of carbon dioxide produces the characteristic holes in Swiss (Emmentaler) cheese are the

Polaribacter and Psychroflexus are two psychrophilic genera that participate in food spoilage and often cause disease in humans.

The complex branched- chain hydroxy lipids present in the peptidoglycan in the cell wall of mycobacteria are known as__________ .

Some filamentous cyanobacteria can grow without light using__________ as carbon and energy sources.

The most striking property of the streptomycetes is the extent to which they produce_______.

Which of the following is TRUE of Prochloron?

In a consortium, phototrophic cells are called

How many prosthecae are produced by Verrucomicrobium and Prosthecobacter?

Microorganisms and Microbiology

A Brief Journey to the Microbial World

Cell Structure and Function in Bacteria and Archaea

Nutrition, Culture, and Metabolism of Microorganisms

Microbial Growth

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

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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