Question
Biology Question on Transport in Plants
For a plasmolysed cell which equation is correct?
A
DPD = OP + TP
B
DPD = -TP
C
DPD = OP
D
DPD = OP - TP.
Answer
DPD = OP + TP
Explanation
Solution
If a plant cell is placed in hypertonic solution, plasmolysis occurs. As a result protoplast is reduced in size. This decreases turgor pressure. In a completely plasmolysed cell turgor pressure is zero. If the external solution does not cause any further exosmosis then, DPD = OP.