Questions about trees

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peterjeon05
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Questions about trees

Post by peterjeon05 » Fri Jan 19, 2007 12:05 am

In large trees, for example, this involves a huge amount of water being pumped over a very long distance. This obviously represents a great deal of work, and that, in turn, requires energy. Wht is the source of this energy, and how is this water pumping operation accomplished??? :roll:

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LilKim
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Post by LilKim » Fri Jan 19, 2007 3:28 am

Hey Peter!

I think you could start to answer that question by researching plant transpiration.

Here are 2 links:
http://en.wikipedia.org/wiki/Transpirational_pull

http://en.wikipedia.org/wiki/Transpiration

hope this will help answer your question

Good luck!
- KIM

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sachin
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Post by sachin » Fri Jan 19, 2007 3:30 pm

Capillary action........ of Bundal sheath....

I dont know much but I know that "capillary action" is right answer....then.
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MrMistery
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Post by MrMistery » Fri Jan 19, 2007 5:36 pm

actually no sachin. capillary action does contribute, but the main factor in the ascention of water through xylem in trees is the sucktion of leaves.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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sachin
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Post by sachin » Fri Jan 19, 2007 6:36 pm

That means Leaves are water pumps... right?
And Xylem and bunddles are the pipe lines......
Senior Education Officer, BNHS, India. www.bnhs.org

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MrMistery
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Post by MrMistery » Fri Jan 19, 2007 6:53 pm

something like that yeah...
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Doc44
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Post by Doc44 » Sun Jan 21, 2007 1:20 am

TRANSPIRATION PULL.

Doc44

Leaves suck like some other things, in MODERATion.

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