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4 Cards in this Set

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Halobacterium

The genus Halobacterium in archaea capture light energy that drives ATP synthesis. They are among the most salt-tolerant organisms on Earth, compensating for water lost through osmosis by pumping potassium ions (K+) into the cell.

Explain why prokaryotes are the most abundant organisms on Earth.

Prokaryotic species have the ability to adapt to a broad range of habitats. The number of prokaryotes in a handful of fertile soil is greater than the number of people who have ever lived. Prokaryotes can tolerate extreme conditions.

Describe the structural and functional adaptations that contribute to prokaryotic success.

  • Most prokaryotes are unicellular, although cells of some species remain attached to each other after cell division.
  • Diameters of 0.5-5 um.
  • Variety of shapes.
  • Well organized, achieving all of an organism's life functions within a single cell.

Refer to http://www.cram.com/flashcards/chp-27-bio-bacteria-and-archaea-735197

http://www.cram.com/flashcards/chp-27-bio-bacteria-and-archaea-735197