Water Movement up a Plant

From the Root Into the Rest of the Plant

Once water has been absorbed by the roots and has entered the vascular tissue, a further question arises: how does that water then travel all the way up to the rest of the plant, against the pull of gravity? Two things need explaining — whether this upward movement is an active, energy-consuming process or a passive one, and what actually supplies the driving force that keeps the water column climbing. The two mechanisms that together answ …