| (i) The apoplastic movement of water takes place exclusively through intercellular spaces and cell wall without crossing any membrane. |
| (ii) Symplastic movement occurs from cell to cell through plasmodesmata, i.e., adjacent cells are connected through plasmodesmata. |
| (iii) Permeability of a membrane depends on its composition and chemical nature of the solute. |
| (iv) Solutes present in a cell increase the free energy of the water or water potential. |
A) (i),(ii) and (iii)
B) (i), (ii) and (iv)
C) (ii) and (iv)
D) (i) and (iv)
Correct Answer: A
Solution :
[a] Addition of solutes in a system of cell decreases the energy of water. Pure water has the maximum diffusion pressure. Water potential or chemical potential of pure water is the difference in the free energy per unit molal volume of water in a system in reference to pure water at normal temperature and pressure
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