Question 1

The thaumarcheal ammonia oxidizers contribute to the global cycling of

Accepted Answer

A)  phosphorus. 
B)  nitrogen. 
C)  sulfur. 
D)  oxygen. 
E)  hydrogen. 
A)  phosphorus. 
B)  nitrogen. 
C)  sulfur. 
D)  oxygen. 
E)  hydrogen.

Question 2

Describe two possible explanations for the deep branching position of multiple methanogenic clades in the euryarchaeotes.

Accepted Answer

Two possible explanations of this phylog

Question 3

Which of the following coenzymes is NOT specific for methanogenesis?

Accepted Answer

A)  methanofuran (MFR) 
B)  tetrahydromethanopterin (H4MPT) 
C)  cofactor F420 (F420) 
D)  nicotinamide adenine dinucleotide (NAD+) 
E)  coenzyme M (CoM) 
A)  methanofuran (MFR) 
B)  tetrahydromethanopterin (H4MPT) 
C)  cofactor F420 (F420) 
D)  nicotinamide adenine dinucleotide (NAD+) 
E)  coenzyme M (CoM)

Question 4

What novel adaptation would you expect undersea vent archaea to have versus archaea growing at a similar temperature in terrestrial hot springs?

Accepted Answer

A)  barophily 
B)  thermophily 
C)  bacteriorhodopsin phototrophy 
D)  pseudopeptidoglycan 
E)  positively supercoiled genome 
A)  barophily 
B)  thermophily 
C)  bacteriorhodopsin phototrophy 
D)  pseudopeptidoglycan 
E)  positively supercoiled genome

Question 5

What are methane gas hydrates and where are they found? Discuss the idea of benthic mining.

Accepted Answer

Psychrophilic marine methanogens grow at

Question 6

Which of the following uses light to generate a proton gradient in the haloarchaeotes?

Accepted Answer

A)  bacteriorhodopsin 
B)  bacterioruberin 
C)  halorhodopsin 
D)  methanofuran 
E)  ferredoxin 
A)  bacteriorhodopsin 
B)  bacterioruberin 
C)  halorhodopsin 
D)  methanofuran 
E)  ferredoxin

Question 7

Describe the physiological adaptations found in haloarchaea that compensate for the high internal potassium chloride concentrations.

Accepted Answer

Most of the haloarchaea have a GC conten

Question 8

Why do most hyperthermophiles tend to be anaerobic?

Accepted Answer

A)  Heated water dissolves high concentrations of sulfides and other reduced minerals. 
B)  The pH of high temperature water prohibits aerobic respiration. 
C)  All hyperthermophilic environments are deep beneath the sea. 
D)  At higher temperatures, the oxygen concentration of water declines. 
E)  Methanogenesis can only be performed anaerobically. 
A)  Heated water dissolves high concentrations of sulfides and other reduced minerals. 
B)  The pH of high temperature water prohibits aerobic respiration. 
C)  All hyperthermophilic environments are deep beneath the sea. 
D)  At higher temperatures, the oxygen concentration of water declines. 
E)  Methanogenesis can only be performed anaerobically.

Question 9

Discuss the role of the four different types of rhodopsins found in the Halobacterium species (bacteriorhodopsin, halorhodopsin, and sensory rhodopsins I and II).

Accepted Answer

Bacteriorhodopsin is a light-driven pump

Question 10

Pyrodictium species grow as networks interconnected by glycoprotein tubules called

Accepted Answer

A)  cannulae. 
B)  pili. 
C)  fimbriae. 
D)  flagella. 
E)  actin filaments. 
A)  cannulae. 
B)  pili. 
C)  fimbriae. 
D)  flagella. 
E)  actin filaments.

The thaumarcheal ammonia oxidizers contribute to the global cycling of

Describe two possible explanations for the deep branching position of multiple methanogenic clades in the euryarchaeotes.

Which of the following coenzymes is NOT specific for methanogenesis?

What novel adaptation would you expect undersea vent archaea to have versus archaea growing at a similar temperature in terrestrial hot springs?

What are methane gas hydrates and where are they found? Discuss the idea of benthic mining.

Which of the following uses light to generate a proton gradient in the haloarchaeotes?

Describe the physiological adaptations found in haloarchaea that compensate for the high internal potassium chloride concentrations.

Why do most hyperthermophiles tend to be anaerobic?

Discuss the role of the four different types of rhodopsins found in the Halobacterium species (bacteriorhodopsin, halorhodopsin, and sensory rhodopsins I and II).

Pyrodictium species grow as networks interconnected by glycoprotein tubules called

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

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

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

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Exam 19: Archaeal Diversity

The thaumarcheal ammonia oxidizers contribute to the global cycling of

Describe two possible explanations for the deep branching position of multiple methanogenic clades in the euryarchaeotes.

Which of the following coenzymes is NOT specific for methanogenesis?

What novel adaptation would you expect undersea vent archaea to have versus archaea growing at a similar temperature in terrestrial hot springs?

What are methane gas hydrates and where are they found? Discuss the idea of benthic mining.

Which of the following uses light to generate a proton gradient in the haloarchaeotes?

Describe the physiological adaptations found in haloarchaea that compensate for the high internal potassium chloride concentrations.

Why do most hyperthermophiles tend to be anaerobic?

Discuss the role of the four different types of rhodopsins found in the Halobacterium species (bacteriorhodopsin, halorhodopsin, and sensory rhodopsins I and II).

Pyrodictium species grow as networks interconnected by glycoprotein tubules called

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

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

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

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