Notices
Results 1 to 4 of 4

Thread: Osmotic pressure..

  1. #1 Osmotic pressure.. 
    New Member
    Join Date
    Oct 2009
    Posts
    3
    Hi guys!

    I got a question which is: Why does desert plants have a higher (in the negatives) Osmotic Pressure than tropical ones?

    Does it have a link with the transpiration of the plant?

    Thanks :-D


    Reply With Quote  
     

  2.  
     

  3. #2  
    Reptile Dysfunction drowsy turtle's Avatar
    Join Date
    Mar 2009
    Location
    UK
    Posts
    2,255
    Probably to get as much water as they possibly can from the ground, after it rains: they need to take up water quickly when it is available, so they need to maintain a water potential gradient.


    "The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." ~ Douglas Adams
    Reply With Quote  
     

  4. #3  
    New Member
    Join Date
    Oct 2009
    Posts
    3
    Quote Originally Posted by drowsy turtle
    Probably to get as much water as they possibly can from the ground, after it rains: they need to take up water quickly when it is available, so they need to maintain a water potential gradient.
    Oh ok thanks.

    But I don't understand the mechanism? Will the plant augment his concentration in solute to get a higher osmotic pressure?

    Also, just to be sure... the more the osmotic pressure is in the negatives, the more it is stronger?
    Reply With Quote  
     

  5. #4  
    New Member
    Join Date
    Oct 2009
    Posts
    3
    Someone got an idea how it works?
    Reply With Quote  
     

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
  •