12 Questions
What is unique about Spirochetes among all prokaryotes?
Their helical morphology
Which genus is described as having a very unusual morphology of aquatic cells that attach by a stalk?
Thermus
What is the primary distinguishing feature of Chloroflexus compared to cyanobacteria in terms of photosynthesis pathways?
Older pathway for photosynthesis
Which bacteria are known for their innate resistance to high levels of radiation?
Deinococcus
Which bacteria are hyperthermophiles known for growing near the boiling point of water?
Aquifex
What is the primary characteristic of Green nonsulfur bacteria that sets them apart from other bacterial groups mentioned?
Anoxygenic phototrophy
Which of the following is a characteristic of Proteobacteria?
They include phototrophic and chemolithotrophic species
According to the endosymbiont hypothesis, which group of bacteria are mitochondria believed to be descendants of?
Alpha-proteobacteria
Which of the following genera is an example of Gram-positive bacteria?
Bacillus
Which of the following statements about Gram-positive bacteria is true?
They have a particular cell wall structure that stains 'Gram-positive'
Which of the following is a characteristic of Cyanobacteria?
They are oxygenic phototrophs
Why are Cyanobacteria believed to have been critical to the evolution of life?
They produced oxygen as a waste product
Test your knowledge on Domain Bacteria and Proteobacteria. Learn about the characteristics and examples of Proteobacteria groups including alpha, beta, gamma, and more.
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