18 Questions
What is the function of fimbriae in prokaryotes?
To attach to suitable surfaces or to other individuals in a colony
What is the term for prokaryotes that obtain energy from chemicals?
Chemotrophs
What is the term for the combination of obtaining energy from light and requiring CO2 as a carbon source?
Photoautotrophy
What is the outermost layer of the cell wall in Gram-negative bacteria?
Outer membrane
What is the term for the study of the genetic diversity of prokaryotes?
Phylogeny
What is the function of the capsule in prokaryotes?
To enable adherence to substrates or to other individuals in a colony
Which type of archaea produces methane as a waste product?
Methanogens
Which group of bacteria includes photoautotrophs, chemoautotrophs, and heterotrophs?
Proteobacteria
What characteristic do archaea share with eukaryotes?
Genetic material organization
Which type of bacteria are parasites that live within animal cells?
Chlamydias
What is a characteristic of gram-positive bacteria?
They have a cell wall
Which subgroup of proteobacteria is NOT mentioned in the text?
Zeta
What is the main function of the cell wall in prokaryotic cells?
To maintain cell shape and provide protection
What is the main difference between Gram-positive and Gram-negative bacteria?
The thickness of the peptidoglycan layer
What is the main component of bacterial cell walls?
Peptidoglycan
What is the shape of bacilli?
Rod-shaped
What is the purpose of the cell surface structures in prokaryotic cells?
To maintain cell shape and provide protection
What is unique about the cell walls of archaeal cells?
They contain a variety of polysaccharides and proteins
Test your knowledge of Archaea, a domain of single-celled microorganisms, and their characteristics, including extremophiles, halophiles, thermophiles, and methanogens. Learn about their habitats and unique traits.
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