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Home Q & A Board Biology-Related Homework Help Cell Biology
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avaggp avaggp
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6 years ago
What special adaptation(s) has/have Thermoplasma evolved to survive in hot acidic environments?
 
  A) Thermoplasma stabilize their cytoplasmic membrane by incorporation of tetraether lipoglycans in the cytoplasmic membrane.
  B) Thermoplasma have a reinforced cell wall containing basic amino linkers in the peptidoglycan.
  C) Thermoplasma excrete hydrogen ions and import hydroxyl ions.
  D) Thermoplasma are highly motile to avoid destruction.


Approximately ________ of the Methanocaldococcus jannaschii genes have no counterparts in known genes from other sequenced organisms.
 
  A) 10
  B) 25
  C) 40
  D) 70


Most known methanogens are nonhalophilic
 
  A) psychrophiles.
  B) mesophiles.
  C) thermophiles.
  D) extremophiles (at either the psychrophilic or thermophilic end).


Which of the following are NOT substrates for methanogens?
 
  A) acetate and pyruvate
  B) carbon dioxide, carbon monoxide, and formate
  C) glucose and sucrose
  D) methanol, methylamine, and methylmercaptan


Some members of the Thermoplasmatales can grow at pH levels below
 
  A) 4.
  B) 7.
  C) 0.
  D) 10.
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gregbren89@gmaigregbren89@gmai
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6 years ago
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avaggp Author
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6 years ago
Dude, you're awesome. I wish I had you as my teacher!
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