Question

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

(a) no movement of water

(b) equilibrium between the two

(c) movement of water from cell A to B

(d) movement of water from cell B to A.

Answer 1

Answer:(c) movement of water from the cell A to B

This movement of the water from the cell A to cell B is caused because the water always travels from the low Differential Pressure Deficit (DFD) to the High Differential Pressure Deficit (DFD).The DFD can be given as;

  where all terms are with positive value.therefore DFD for A is 3atm whereas the DFD for B is 5 atm,therefore it is cell A that is having low DFD than Cell B