Q. Which one of the following statement is wrong?
(a) Water potential is the chemical potential of the water.
(b) Solute potential is always negative.
(c) Pressure potential is zero in a flaccid cell.
(d) Water potential equals solute potential in a fully turgid cell.
(e) Pressure potential is negative in a plasmolyzed cell.
Solution :
Correct option : D Water potential is the chemical potential of water, whose value depends on the number of water molecules in the system. Water potential is calculated by the sum of solute potential and pressure potential. Solute potential is negative and pressure potential is positive. In a fully turgid cell, solute potential is equal to pressure potential and consequently water potential is zero. Thus, no water can enter inside a fully turgid cell.