Notices
Results 1 to 13 of 13

Thread: halophiles and thermophiles role?

  1. #1 halophiles and thermophiles role? 
    Forum Freshman
    Join Date
    Jun 2006
    Posts
    16
    Halophiles and thermophiles are two of the three groups of Archaea. Halophiles live in environments with plenty of salt concentration and thermophiles live in geothermal areas where there is plenty of heat.
    What exactly is their role in their extreme environment?

    An example is methanogens live in wetlands and intestinal tracts of herbivores. Their main role in their environment is to remove excess hydrogen and fermentation products that have been produced by other forms of anaerobic respiration.


     

  2.  
     

  3. #2 Re: halophiles and thermophiles role? 
    Forum Professor sunshinewarrior's Avatar
    Join Date
    Sep 2007
    Location
    London
    Posts
    1,525
    Quote Originally Posted by scidude
    Halophiles and thermophiles are two of the three groups of Archaea. Halophiles live in environments with plenty of salt concentration and thermophiles live in geothermal areas where there is plenty of heat.
    What exactly is their role in their extreme environment?

    An example is methanogens live in wetlands and intestinal tracts of herbivores. Their main role in their environment is to remove excess hydrogen and fermentation products that have been produced by other forms of anaerobic respiration.
    This question of yours may, or may not, be founded on a logical misunderstanding.

    No living beings (despite what religion tells you!) have any telos. At least not as far as science is concerned. Therefore, by definition, they don't have 'purposes'.

    Methanogens don't have a 'role'. They have behaviour, or lifestyles, that work in certain ways. Evolution works in ways that allows for these methanogens to develop commensal relationships with, say, grass eaters, providing a sort of 'joint' lifestyle - often also called symbiosis.

    If you want an outline of the lifestyles of the halophiles and thermophiles, look up wikipedia. If you're looking for a 'purpose' for them look up al-Q'uran, or The Bible, or some such - science doesn't deal in that.

    Apologies if I've misunderstood your question(s) - I'll be happy to clarify any further questions you may have.

    cheer

    shanks


     

  4. #3  
    Forum Freshman
    Join Date
    Jun 2006
    Posts
    16
    Okay, I might have worded it wrong. Methanogens may not exactly have a role but it does use up hydrogen because it needs it as an energy source. Thus we sort of view it as having a role in the environment even though methanogens are just trying to survive.

    So does halophiles and thermophiles ‘technically’ have a role in their environment?

    thanks
     

  5. #4  
    Forum Professor
    Join Date
    Sep 2007
    Posts
    1,079
    Are you familiar with the biochemical pathways catalysed by thermophiles at hydrothermal vents? That might provide a clue for you.....
     

  6. #5  
    Forum Cosmic Wizard paralith's Avatar
    Join Date
    Jun 2007
    Posts
    2,190
    I don't know specifics about halophiles, but I suspect they are similar to thermophiles in that they are able to survive in places where plants cannot and are able to fix carbon. Thus, where plants form the basis of most food chains as being the primary carbon fixers, these bacteria form the basis of any food chain ecology that might exist in such environments. Thermophiles living near hydrothermal vents at the bottom of the ocean cannot only physically survive there but fix carbon using an energy source other than light (which obviously does not reach such depths). Whole ecosystems build up around these vents based on the thermophilic bacteria.
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
    ~Jean-Paul Sartre
     

  7. #6  
    Forum Cosmic Wizard spuriousmonkey's Avatar
    Join Date
    May 2005
    Posts
    2,191
    thermohiles' role is to provide Taq polymerase for scientists so they can do PCR.
    "Kill them all and let God sort them out."

    - Arnaud Amalric

    http://spuriousforums.com/index.php
     

  8. #7  
    Forum Cosmic Wizard paralith's Avatar
    Join Date
    Jun 2007
    Posts
    2,190
    Quote Originally Posted by spuriousmonkey
    thermohiles' role is to provide Taq polymerase for scientists so they can do PCR.
    I didn't know that. That's pretty cool. I owe a good deal of my job to thermophiles.
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
    ~Jean-Paul Sartre
     

  9. #8  
    Forum Cosmic Wizard spuriousmonkey's Avatar
    Join Date
    May 2005
    Posts
    2,191
    In Finland we use a different one. Much cheaper.
    "Kill them all and let God sort them out."

    - Arnaud Amalric

    http://spuriousforums.com/index.php
     

  10. #9  
    Forum Freshman
    Join Date
    Jun 2006
    Posts
    16
    thanks for the info, i forgot that their role in the ecosystem can be their role in the environment
     

  11. #10  
    New Member
    Join Date
    Sep 2009
    Posts
    2
    guys your not specifically stating the role of halophiles and thermophiles in the ecosystem??
    i need help 4 my exam
    thnx
     

  12. #11  
    Forum Cosmic Wizard paralith's Avatar
    Join Date
    Jun 2007
    Posts
    2,190
    science.geek, there is a good answer to just such an exam question in this thread already, even though we don't generally encourage the giving away of homework/exam questions.
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
    ~Jean-Paul Sartre
     

  13. #12  
    New Member
    Join Date
    Sep 2009
    Posts
    2
    i must hav missed the answer then
    our teacher rushed through this topic and obviously missed this that why im asking
    r u able 2 repeat the answer pls
     

  14. #13  
    Forum Cosmic Wizard paralith's Avatar
    Join Date
    Jun 2007
    Posts
    2,190
    If you know how to read, just read the thread again. If you can't understand the point from what's written here my repeating it won't help you.

    Since the answer is really already given and we generally do not support just giving answers away to students any way, I'm going to close this thread. If anyone would like to have a real discussion about thermophiles and halophiles, PM me and I will re-open it.
    /moderator mode
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
    ~Jean-Paul Sartre
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •