logo

BioFlix: Water Transport in Plants

by Pearson
7 views
Was this helpful ?
0
Trees must transport water and minerals to their highest leaves. How does this happen? Interestingly, trees move water by losing water. Evaporation of water from plants is called transpiration. Water diffuses from inside a leaf to the outside air through pores. Inside a leaf are air spaces. Water evaporates constantly from the surfaces of surrounding cells. To better see the water, let's show it in blue. Notice that water forms a film on cell walls, including the walls of cells in leaf veins. Within the veins are hollow, tube-like cells, shown in brown. These cells, also found in stems and roots, are part of the tissue called xylem. Water and minerals are transported from roots to veins through the xylem, and then from veins into the walls of other leaf cells.
Trees must transport water and minerals to their highest leaves. How does this happen? Interestingly, trees move water by losing water. Evaporation of water from plants is called transpiration. Water diffuses from inside a leaf to the outside air through pores. Inside a leaf are air spaces. Water evaporates constantly from the surfaces of surrounding cells. To better see the water, let's show it in blue. Notice that water forms a film on cell walls, including the walls of cells in leaf veins. Within the veins are hollow, tube-like cells, shown in brown. These cells, also found in stems and roots, are part of the tissue called xylem. Water and minerals are transported from roots to veins through the xylem, and then from veins into the walls of other leaf cells.