Botany - Transport in Plants Question with Solution | TestHub

The number of water molecules in the system ​determines the water potential, the more water molecules, the greater will be the water potential. The water potential of all solutions is negative in comparison to pure water (water potential is zero). Under the conditions, when there are more water molecules in the system, water potential is expected to be higher, e.g., under conditions of low transpiration in leaf tissue the water potential is expected to be positive. When transpiration is low, considerably more water molecules will be stuffed up inside leaf in the intercellular spaces giving rise to positive water potential.