If a potato core is allowed to dehydrate by sitting in the open air, would the water potential of the potato cells decrease or increase? Why?
2007-11-07 08:58:09 · 2 answers · asked by Kev 2 in Science & Mathematics ➔ Biology
The potato core will lose water due to dehydration. Its water potential will decrease due to this loss. The loss of the water increases its solutes as well. Any addition of solutes will decrease water potential. If you increase pressure that will increase water pressure.
Water flows from an area of high potential to an area of low potential. Water Potential is expressed in units of pressure: 1 bar is the pressure needed to push up a column of water 10 meters. 1 megapascal = 10 bars. Pure water has a potential of 0.
2007-11-07 09:19:27 · answer #1 · answered by ATP-Man 7 · 0⤊ 0⤋
Water potential is the same thing as water concentration. If the water evaporates from the potato, then the water concentration inside the potato cells would decrease.
2007-11-07 09:05:30 · answer #2 · answered by ecolink 7 · 1⤊ 1⤋