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1% of the water a tree takes up is for photosynthesis. 

5% of the water a tree intakes is for 'making new cells'.

What happens to the rest of the water? Or rather, what is the rest of the water used for?

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Comment by Paul Kuepfer on June 13, 2013 at 11:33pm

David, you are right and wrong. 

For the skinny, check out http://youtu.be/BickMFHAZR0 and start at just before the 4:15 mark.

Comment by David MacLeod on June 13, 2013 at 10:20am

Water is used as a transport medium for essential nutrients, and it provides the "turgor pressure" - the hydration essential for life.

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