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Biology-Related Homework Help Cell Biology Topic started by: avaggp on Feb 20, 2018



Title: What special adaptation(s) has/have Thermoplasma evolved to survive in hot acidic environments? ...
Post by: avaggp on Feb 20, 2018
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.


Title: What special adaptation(s) has/have Thermoplasma evolved to survive in hot acidic environments? ...
Post by: gregbren89@gmai on Feb 20, 2018
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Title: What special adaptation(s) has/have Thermoplasma evolved to survive in hot acidic environments? ...
Post by: avaggp on Feb 20, 2018
Dude, you're awesome. I wish I had you as my teacher!