How does water move through a plant and which structures it exits the leaf?
Hi Dov, The parts of a plant that are involved with moving water to the highest parts of a tree are: the roots (which absorb water, along with nutrients, from the soil); the xylem or sapwood (which is the layer in the trunk and stems of a tree that move the water up the column of the tree and out to the leaves); the veins of the leaves (which transport water to the cells of the leaves); and the leaves’ stomata [singular = stoma] (which release water vapor to create the necessary water pressure variance that allows for the water to rise up in the tree’s trunk and stems. This is called the transpiration stream. I hope this helps.
