 | Term | Definition |
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Cytoplasmic streaming |
The movement of cytoplasm within a living cell. It (1) creates cytoplasmic reorganization during cell reproduction, (2) transports nutrients, enzymes and other particles between organelles, (3) speeds up intercellular transport. Actin & Myosin MICROFILAMENTS drive & control the direction of cyclosis. |
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Cyclosis |
Cytoplasmic streaming |
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Mass flow |
The bulk transport of materials from one point to another as a result of a pressure difference between the two |
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Translocation |
The movement of substances through the VASCULAR tissues of plants |
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Water potential |
The potential energy of water relative to pure, deionized water in reference conditions. It quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure, or matrix effects including surface tension. The greater the conc. of water molecules in a system, the greater the total k.e. of the molecules and the higher its so-called water potential. |
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Solute potential |
A measure of the lowering of water potential by the addition of a solute to pure water at reference conditions |
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Pressure potential |
A measure of the pressure exerted by water upon cell walls; acts in the opposite direction to solute potential |
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Secondary growth |
Involves the thickening of the plant axis (root, stem) due to the activity of lateral meristems. It results in increased amounts of vascular tissue |
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Meristem |
An organized, undifferentiated plant tissue with rapidly dividing cells that differentiate to form new tissues or organs |
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Undifferentiated |
Of a cell or tissue: not specialized. It has not yet generated the structures or proteins characteristic to a specific cell type |
