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What bacteria causes stomach ulcers?

Helicobacter pylori (Proteobacteria)

What bacteria causes cholera?

Vibrio cholerae (Proteobacteria)

What bacteria causes gonorrhea?

Neisseria gonorrhoeae (Proteobacteria)

What is the largest known prokaryote?

Thiomargarita namibiensis (Proteobacteria)

What bacteria causes Lyme disease?

Borrelia burgdorferi (Spirochetes)

What bacteria causes syphilis?

Treponema pallidum (Spirochetes)

What bacteria causes tuberculosis?

Mycobacterium tuberculosis (Gram-positive)

What bacteria causes leprosy?

Mycobacterium leprae (Gram-positive)

What bacteria causes anthrax and forms endospores?

Bacillus anthracis (Gram-positive)

What bacteria causes botulism?

Clostridium botulinum (Gram-positive)

What bacteria causes MRSA skin infections?

Staphylococcus aureus (Gram-positive)

What bacteria is the source of tetracycline and erythromycin?

Streptomyces (Gram-positive)

What bacteria fixes nitrogen in plant roots?

Rhizobium (Proteobacteria)

What bacteria causes the most common STD in the US and blindness worldwide?

Chlamydia trachomatis (Chlamydias)

What cyanobacterium performs both photosynthesis and nitrogen fixation using heterocysts?

Anabaena (Cyanobacteria)

What archaea is used in PCR due to heat-stable DNA polymerase?

Pyrococcus furiosus (Extreme thermophile)

What archaea lives in extremely salty environments like the Dead Sea?

Halobacterium (Extreme halophile)

What group of archaea produces methane and lives in cow guts and swamps?

Methanogens

What group did mitochondria evolve from?

Alpha-proteobacteria

What group did chloroplasts evolve from?

Cyanobacteria

Which bacterial group are obligate intracellular parasites that cannot make their own ATP?

Chlamydias

What structural feature allows spirochetes to move through thick tissue?

Internal flagella (axial filaments)

What two nutritional modes are unique to prokaryotes?

Chemoautotroph and Photoheterotroph

What bacteria forms biofilms and is highly antibiotic resistant?

Pseudomonas aeruginosa (Proteobacteria)

What is the only prokaryote group that performs oxygen-generating photosynthesis?

Cyanobacteria

What bacteria model organism is used to study mutation rates and evolution?

Escherichia coli (Proteobacteria)

What are the three mechanisms of horizontal gene transfer in prokaryotes?

Transformation, Transduction, and Conjugation

What prokaryotic defense system became a powerful gene editing tool?

CRISPR-Cas9

What process uses organisms to remove environmental pollutants?

Bioremediation

What is the name for the region where prokaryotic DNA is located?

Nucleoid