Q31 - Plant Cell Water Potential Components
Refer to the question paper for figures and tables.
a. Turgor pressure changes with an initial 5% change in cell volume is comparable with the changes observed in the osmotic potential.
b. With a fall in cell volume from 90 to 80%, most of the change in water potential is due to a drop in turgor pressure and not as much due to osmotic pressure.
c. The elastic modulus of the cell is not constant but decreases as the cell loses turgor.
d. For leaf mesophyll cells of palm trees having relatively rigid cell walls, the volume change associated with turgor loss will be smaller than cells with extremely elastic walls.