Q1 of 67 Page 48

Name the following:

The process by which molecules distribute themselves evenly within the space they occupy.

Diffusion is the free movement of molecules of a substance from its higher concentration to its lower concentration when the two are in direct contact. This phenomenon can be easily explained by the process of mixing of a soluble dye in water where the dye dissolves in water taking up the space between the existing molecules of water and thus evenly distributed in the solvent


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1

Name the following:

The tissue concerned with upward conduction of water in plants.

 1

Name the following:

The term for the inward movement of solvent molecules through the plasma membrane of a cell.

 1

Name the following:

The pressure which is responsible for the movement of water molecules across the cortical cells of the root.

 2

Give the equivalent terms for the following:

Pressure exerted by the cell contents on the cell wall.