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KEAM Diffusion Pressure Deficit — practice questions

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Diffusion Pressure Deficit questions and exercises with answers

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**Diffusion Pressure Deficit (DPD)** of a fully turgid plant cell is:Read the answer and worked solution →

Worked practice questions

**Diffusion Pressure Deficit (DPD)** of a fully turgid plant cell is:

  1. Maximum (equal to osmotic pressure)
  2. Zero (cell can absorb no more water)
  3. Negative
  4. Equal to wall pressure
Show answer and 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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