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**Diffusion Pressure Deficit (DPD)** of a fully turgid plant cell is:
AMaximum (equal to osmotic pressure)
BZero (cell can absorb no more water)
CNegative
DEqual to wall pressure
Answer & Solution
Correct answer: B. Zero (cell can absorb no more water)
DPD = OP − TP. In a fully turgid cell, turgor pressure equals osmotic pressure ⇒ DPD = 0 (cell cannot absorb more water). In a flaccid cell (TP = 0), DPD = OP.
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