Archaea Cell Biology Overview
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Questions and Answers

What type of lipids are unique to Archaea cell membranes?

  • Phospholipids with bilayer structure
  • Fatty acids
  • Ester-linked lipids
  • Ether-linked lipids (correct)
  • Which domain shares a more recent common ancestor with Archaea?

  • Bacteria
  • Viruses
  • Prokaryotes
  • Eukarya (correct)
  • What is a unique feature of some Archaea cell membranes that contributes to their robust structure?

  • Lipid monolayer (correct)
  • Steroid rings
  • Fatty acid chains
  • Bilayer structure
  • In terms of DNA-related biology/processes, Archaea are more similar to which domain?

    <p>Eukarya</p> Signup and view all the answers

    What is the primary cell wall component for the majority of archaea?

    <p>Proteinaceous S-layers</p> Signup and view all the answers

    What is the unique polymer found in the cell walls of a small subset of Archaea?

    <p>Pseudomurein</p> Signup and view all the answers

    What is the function of hami in some archaea?

    <p>Fix cells to a surface or to other cells to mediate biofilm formation</p> Signup and view all the answers

    How do archaea achieve swimming motility?

    <p>Via an archaellum - a propeller-like appendage driven by ATP hydrolysis</p> Signup and view all the answers

    Where is Haloquadratum walsbyi commonly found?

    <p>Hyper-saline lakes with saturating salt concentrations</p> Signup and view all the answers

    What is the doubling time of cultured Asgard archaea?

    <p>~10 days</p> Signup and view all the answers

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