Plant Physiology

1. Loss of excess water in the form of water vapour from the aerial parts of the plant.
5. Movement of solvent molecules inside the cell.
7. Phenomenon by which live or dead plant cells absorb water by surface attraction.
8. Process of complete removal of the bark consisting of phloem.
11. Pressure of the cell contents on the cell wall.
12. Free movement of molecules of a substance (solid, liquid or gas) from the region of higher concentration to a region of lower concentration when the two are in direct contact.
13. State of cell wherein the cell wall is stretched by the increase in the volume of the vacuole.

2. Movement of solvent (water molecules) from a region of its higher concentration (dil. solution) to the region of lower concentration (conc. solution) through a semipermeable membrane.
3. loss of liquid sap from the part of the plant due to injury.
4. Pressure of the cell wall on the cell contents.
6. Minimum pressure that must be exerted to prevent the passage of pure solvent into the solution where the two are separated by a semipermeable membrane.
9. Movement of solvent molecules outside the cell.
10. Relative concentration of solution that determine the direction and extent of diffusion.