BIOL 2041 - (exam 1 part3)

What are the three domains of life?

Bacteria, Archaea, Eukarya

Which two domains are prokaryotic?

Bacteria and Archaea

Which domain contains organisms without peptidoglycan?

Archaea

What reference is commonly used to classify prokaryotes?

Bergey's Manual

What does Bergey's Manual organize?

Bacteria into major taxonomic groups.

What is found in Volume 1 of Bergey's Manual?

Archaea, deeply branching bacteria, and photosynthetic bacteria.

What is found in Volume 2 of Bergey's Manual?

Proteobacteria.

What is found in Volume 3 of Bergey's Manual?

Firmicutes.

What is found in Volume 4 of Bergey's Manual?

Spirochaetes, Chlamydiae, and Tenericutes (Mollicutes).

What is found in Volume 5 of Bergey's Manual?

Actinobacteria.

What archaeal group is closely related to the evolution of eukaryotes?

Asgard.

What genus belongs to Crenarchaeota and lives in hot acidic environments?

Sulfolobus

What is unique about Sulfolobus?

Sulfur-oxidizing thermoacidophile.

What genus belongs to Euryarchaeota and produces methane?

Methanococcus

What is unique about Methanococcus?

Methane producer.

What genus is a radiation-resistant bacterium?

Deinococcus

What genus is a thermophilic bacterium?

Acetothermus

What genus is a green sulfur bacterium?

Chlorobium

What genus is a green non-sulfur bacterium?

Chloroflexus

What genus is a unicellular cyanobacterium?

Synechococcus

What genus is a filamentous cyanobacterium?

Oscillatoria

What genus fixes nitrogen among cyanobacteria?

Anabaena

What is the largest Gram-negative bacterial phylum?

Proteobacteria

Into what five groups are Proteobacteria divided?

Alpha, Beta, Gamma, Delta, and Epsilon.

Which Proteobacteria contain Rickettsia and Rhizobium?

Alpha Proteobacteria.

Which genus is an obligate intracellular parasite transmitted by ticks?

Rickettsia

Which genus forms nitrogen-fixing root nodules?

Rhizobium

Which Proteobacteria contain Neisseria?

Beta Proteobacteria.

What is unique about Neisseria?

Gram-negative cocci.

Which Proteobacteria contain Escherichia, Salmonella, Shigella, Vibrio, and Pseudomonas?

Gamma Proteobacteria.

Which genus is associated with the Entner-Doudoroff pathway?

Pseudomonas

Which genus is comma-shaped and aquatic?

Vibrio

Which genus includes E. coli?

Escherichia

Which genus commonly causes food poisoning?

Salmonella

Which genus commonly causes dysentery?

Shigella

Which Proteobacteria contain Desulfovibrio, Bdellovibrio, and Myxococcus?

Delta Proteobacteria.

Which genus is a sulfur reducer?

Desulfovibrio

Which genus preys on Gram-negative bacteria?

Bdellovibrio

Which genus forms fruiting bodies?

Myxococcus

Which Proteobacteria contain Helicobacter?

Epsilon Proteobacteria.

Which genus colonizes the human stomach?

Helicobacter

Which phylum contains Gram-positive bacteria with low G+C DNA?

Firmicutes.

Which genus is an aerobic endospore former?

Bacillus

Which genus is an anaerobic endospore former?

Clostridium

Which genus performs lactic acid fermentation?

Lactobacillus

Which genus forms chains of cocci?

Streptococcus

Which genus is a giant intestinal bacterium?

Epulopiscium

Which phylum contains Treponema and Borrelia?

Spirochaetes.

Which genus causes syphilis?

Treponema

Which genus causes Lyme disease?

Borrelia

Which bacterial genus lacks a cell wall?

Mycoplasma

To which group does Mycoplasma belong?

Tenericutes (Mollicutes).

Which bacterial genus is an obligate intracellular parasite?

Chlamydia

To which phylum does Chlamydia belong?

Chlamydiae.

Which phylum contains Gram-positive bacteria with high G+C DNA?

Actinobacteria.

Which genus causes diphtheria?

Corynebacterium

Which genus is acid-fast?

Mycobacterium

Which genus is famous for producing antibiotics?

Streptomyces

Which genus is used in Swiss cheese production?

Propionibacterium

True or False: Proteobacteria are Gram-positive.

False

True or False: Firmicutes are generally Gram-positive.

True

True or False: Actinobacteria have high G+C DNA.

True

True or False: Mycoplasma lacks a cell wall.

True

True or False: Treponema causes Lyme disease.

False

True or False: Borrelia causes Lyme disease.

True

True or False: Chlamydia is an obligate intracellular bacterium.

True