Osmosis in xylem

[prsndwg]

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Hi everyone,

So I got to osmosis and Xylem and i am very confused. Cliff says the water leaves the xylem! why is that? How is the concentration of solutes higher in Xylem than the soil? or Am I totally wrong. Can someone explain this please.


also,
-Water goes from an area with Low concentration of solute (more water) to High concentration of solute(less water)? am I correct?

Thanks

 

[microbio]

I have heard a lot of talk about Clifs bio ? What is this ? How much is it how does it compare to Kaplan or Destroyers bio stuff?

 

[nze82]

Hi everyone,

So I got to osmosis and Xylem and i am very confused. Cliff says the water leaves the xylem! why is that? How is the concentration of solutes higher in Xylem than the soil? or Am I totally wrong. Can someone explain this please.

Xylem is the tissue used to transport water to the leaves. So water leaves the Xylem and enters the leave (not the soil). Why does this happen?
Leaves are the sites of photosynthesis and sugar production. So, solute concentration is higher in the leaves. Subsequently, water leaves the Xylem (Where solute concentration is low/Water concentration is high) and enters the leaf (Where solute concentration is high/Water concentration is low). Also, keep in mind that in addition to osmosis other factors such as transpiration cause the water to leave the xylem and enter the leaf.
also,
-Water goes from an area with Low concentration of solute (more water) to High concentration of solute(less water)? am I correct? Correct!

Thanks

Hopefully, this is what they meant, when they said water leaves the Xylem.

 

[nze82]

I have heard a lot of talk about Clifs bio ? What is this ? How much is it how does it compare to Kaplan or Destroyers bio stuff?

It covers the same topics as KAPLAN, but just more depth.

 

[tdkyun]

cohesive, adhesive property of water and transpiration cause water to go up.

 

[prsndwg]

To nze82:
Thanks a lot. So leave and not the soil. that makes sense.
Also,
Cliff points out that Osmosis(root pressure) and capillary action (adhesion) dont do as much as cohesion-tension (transpiraion, cohesion, and bulk flow) does.
Cohesion- tension is an important one.

Thanks again