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NEET2007BotanyTransport in PlantsActual

Two cells I and II are contiguous. Cell I has osmotic pressure 10 ~atm . turgor pressure 7 ~atm and diffusion pressure deficit 3 ~atm . Cell II has osmotic pressure 8 ~atm , turgor pressure 3 ~atm and diffusion pressure deficit 5 ~atm . The result will be:

Options

  1. Ano movement of water
  2. Bequilibrium between the two
  3. Cmovement of water from cell I to II
  4. Dmovement of water from cell II to I.

Correct answer

C. movement of water from cell I to II

Step-by-step solution

The water moves from a lower diffusion pressure deficit to a higher diffusion, pressure deficit i.e., from A to B . The cell-to-cell movement of water depends on the DPD, and not on the osmotic pressure and turgor pressure. Related Theory Even though the osmotic pressures are same on both sides of the semi-permeable membrane, the movement of water will take place to equate the DPD on both sides of the membrane. Osmosis takes place from lower D P D (higher water potential) to higher DPD (lower water potential). Ther

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