Question 1

A peptidoglycan-like polymer found in the cell walls of some Archaea is called __________.

Accepted Answer

The answer of A peptidoglycan-like polymer found in the cell...

Question 2

The Crenarchaeota and Euryarchaeota are

Accepted Answer

A)  the two phyla of the Archaea. 
B)  very closely related based on 16S rRNA comparisons. 
C)  photosynthetic Archaea. 
D)  now classified with the bacteria based on genomic sequence analysis. 
A)  the two phyla of the Archaea. 
B)  very closely related based on 16S rRNA comparisons. 
C)  photosynthetic Archaea. 
D)  now classified with the bacteria based on genomic sequence analysis.

Question 3

Most Archaea capable of metabolizing glucose do so using a modified _________ -________ pathway.

Accepted Answer

The answer of Most Archaea capable of metabolizing glucose do...

Question 4

Which of the following contribute(s) to the differences between the Archaea and the bacteria?

Accepted Answer

A)  Archaea lack muramic acid. 
B)  Archaea have isopranyl glycerol ethers rather than fatty acid esters in their membrane lipids. 
C)  Archaea differ from bacteria in their tRNA composition, ribosome structure, and antibiotic sensitivity 
D)  all of these 
A)  Archaea lack muramic acid. 
B)  Archaea have isopranyl glycerol ethers rather than fatty acid esters in their membrane lipids. 
C)  Archaea differ from bacteria in their tRNA composition, ribosome structure, and antibiotic sensitivity 
D)  all of these

Question 5

Many archaeal chromosomes include plasmids.

Accepted Answer

A) True 
 B)False

Question 6

Autotrophy has been observed among the

Accepted Answer

A)  methanogens. 
B)  extreme thermophiles. 
C)  cyanobacteria. 
D)  all of the choices 
A)  methanogens. 
B)  extreme thermophiles. 
C)  cyanobacteria. 
D)  all of the choices

Question 7

Which of the following is not true about archaeal ribosomes?

Accepted Answer

A)  They are 70S like bacterial ribosomes. 
B)  They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences. 
C)  They have similar antibiotic sensitivities to those of bacteria. 
D)  All of these are true about archaeal ribosomes. 
A)  They are 70S like bacterial ribosomes. 
B)  They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences. 
C)  They have similar antibiotic sensitivities to those of bacteria. 
D)  All of these are true about archaeal ribosomes.

Question 8

Archaeal cell walls

Accepted Answer

A)  are disrupted by treatment with lysozyme or penicillin. 
B)  are similar to those of gram-negative bacteria. 
C)  lack murein and D-amino acids. 
D)  include orthomureine. 
A)  are disrupted by treatment with lysozyme or penicillin. 
B)  are similar to those of gram-negative bacteria. 
C)  lack murein and D-amino acids. 
D)  include orthomureine.

Question 9

Archaeal sulfate reducers use elemental sulfur as an electron acceptor.

Accepted Answer

A) True 
 B)False

Question 10

Methanogenic Archaea are

Accepted Answer

A)  obligate anaerobes that produce methane. 
B)  obligate anaerobes that consume methane. 
C)  obligate aerobes that produce methane. 
D)  obligate aerobes that consume methane. 
A)  obligate anaerobes that produce methane. 
B)  obligate anaerobes that consume methane. 
C)  obligate aerobes that produce methane. 
D)  obligate aerobes that consume methane.

Question 11

Archaeons are not known to incorporate (fix) carbon dioxide.

Accepted Answer

A) True 
 B)False

Question 12

Picrophilus has a pH optimum below 1 and can even grow at or near pH 0.

Accepted Answer

A) True 
 B)False

Exam 18: The Archaea

A peptidoglycan-like polymer found in the cell walls of some Archaea is called __________.

The Crenarchaeota and Euryarchaeota are

Most Archaea capable of metabolizing glucose do so using a modified _________ -________ pathway.

Which of the following contribute(s) to the differences between the Archaea and the bacteria?

Many archaeal chromosomes include plasmids.

Autotrophy has been observed among the

Which of the following is not true about archaeal ribosomes?

Archaeal cell walls

Archaeal sulfate reducers use elemental sulfur as an electron acceptor.

Methanogenic Archaea are

Archaeons are not known to incorporate (fix) carbon dioxide.

Picrophilus has a pH optimum below 1 and can even grow at or near pH 0.

The Evolution of Microorganisms and Microbiology

The Study of Microbial Structure: Microscopy and Specimen Preparation

Bacteria and Archaea

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

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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Most Archaea capable of metabolizing glucose do so using a modified _ - pathway.