Chelsea Clinton shows off her daughter. 1  Chelsea Clinton, 35, seen on a family walk in Lower Manhattan Saturday. 2  She was accompanied by investment banker husband, Marc Mezvinsky. 3  Pair showed off adorable baby daughter Charlotte, born last September. 4  They appeared in good spirits as they walked through sunny borough.
Transpiration is the loss of water from a plant in the form of water vapor. absorbed by roots from the soil and transported as a liquid to the leaves via xylem. leaves, small pores allow water to escape as a vapor. less than 5% remains in the plant for growth.
Water enters the xylem in the roots by Osmosis. Once in the xylem the water molecules hydrogen bond forming a continuous string of water molecules up to the leaf. Water is constantly lost by Transpiration in the leaf. When one water molecule is lost another is pulled along. Transpiration pull is the main cause of water movement. Control of Transpiration in the Leaves. Plants must have the ability to prevent too much water from transpiring out of the the stomata (stoma, singular) of the leaves. If they didnt do so they would lose too much water and the plant would shrivel up and die.