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Absorption by roots - The Processes Involved — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyAbsorption by roots - The Processes Involved1 Mark
MCQ
When cell is fully turgid, which of the following will be zero?
  • A
    Osmotic pressure
  • B
    Turgor pressure
  • C
    Wall pressure
  • ✓
    Suction pressure (SP) or Diffusion Pressure Deficit (DPD)
✓

Answer

Correct option: D.
Suction pressure (SP) or Diffusion Pressure Deficit (DPD)
(d) Suction pressure (SP) or Diffusion Pressure Deficit (DPD)
Explanation:
When a cell is fully turgid, its suction pressure (SP) or diffusion pressure deficit (DPD) is zero because there is no net movement of water into the cell; the osmotic and turgor pressures are balanced.

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