Just a random question about plants?

Question

How does water travel through plants?

And how does the structure of the xylem vessels allow water to travel from the roots to the leaves?

Last question - How does osmosis help with this?

Answer 1

Water enters through the roots to get the water to travel up the plant (I am forestry so I will use a tree) the stomata (holes in the leaves) create a low pressure system.  Water travels to the low pressure system using the capillary action (finger on a straw) to pull the water up also.  Osmosis is just a word that says the cell walls of the xylem allow water to go through.  That said the xylem cells are actually dead the only cells alive in a tree are the cambium, the root tips, buds, and leaves.  I feel like I am missing one other alive group.