Q. Which among the following represents the correct relationship for a plasmolysed cell?
A) $\Psi_{W} = \Psi_{S} + \Psi_{P}$
B) $\Psi_{S} = \Psi_{W} + \Psi_{P}$
C) $\Psi_{W} = \Psi_{S}$
D) $\Psi_{W} = \Psi_{P}$
Explanation
Positive force-turgor pressure (hydrostatic pressure) or pressure potential ($\Psi_{p}$) is kept under check by wall pressure. In a plasmolysed cell, turgor pressure is nill therefore, osmotic pressure $(\Psi_{s})$ becomes equal to DPD ($\Psi_{w}$)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.