Resource Acquisition and Transport in Vascular Plants
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| 1200543268 | leaf area index | the ratio of total upper leaf surface of a plant divided by the surface area of land on which it grows | 0 | |
| 1200543269 | phyllotaxy | the arrangement of leaves on a stem, is specific to each species | 1 | |
| 1200543270 | mycorrhizae | network of hyphae and plant roots that helps plants absorb water and minerals from soil | 2 | |
| 1200543271 | apoplast | In plants, the continuum of cell walls plus the extracellular spaces. | 3 | |
| 1200543272 | symplast | in plants, the continuum of cytoplasm connected by plasmodesmata between cells. | 4 | |
| 1200543273 | osmosis | diffusion of water through a selectively permeable membrane | 5 | |
| 1200543274 | water potential | the physical property predicting the direction in which water will flow, governed by solute concentration and applied pressure. | 6 | |
| 1200543275 | solute potential | A component of water potential that is proportional to the number of dissolved solute molecules in a solution and measures the effect of solutes on the direction of water movement; also called osmotic potential, it can be either zero or negative. | 7 | |
| 1200543276 | Pressure potential | A component of water potential that consists of the physical pressure on a solution, which can be positive, zero, or negative. | 8 | |
| 1200543277 | megapascal | unit of pressure used to measure water potential | 9 | |
| 1200543278 | protoplast | The contents of a plant cell exclusive of the cell wall. | 10 | |
| 1200543279 | turgor pressure | the pressure that is exerted on the inside of cell walls and that is caused by the movement of water into the cell | 11 | |
| 1200543280 | flaccid | limp | 12 | |
| 1200543281 | plasmolysis | the contraction or shrinking of the cell membrane of a plant cell in a hypertonic solution in response to the loss of water by osmosis | 13 | |
| 1200543282 | turgid | swollen as from a fluid; bloated | 14 | |
| 1200543283 | wilting | The drooping of leaves and stems as a result of plant cells becoming flaccid. | 15 | |
| 1200543284 | aquaporins | A channel protein in the plasma membrane of a plant, animal, or microorganism cell that specifically facilitates osmosis, the diffusion of water across the membrane. | 16 | |
| 1200543285 | bulk flow | The movement of water due to a difference in pressure between two locations. | 17 | |
| 1200543286 | xylem sap | the solution of water and minerals that accumulates in the root xylem and flows through xylem vessels in a plant | 18 | |
| 1200543287 | transpiration | the emission of water vapor from the leaves of plants | 19 | |
| 1200543288 | endodermis | The innermost layer of the cortex in plant roots; a cylinder one cell thick that forms the boundary between the cortex and the vascular cylinder. | 20 | |
| 1200543289 | Casparian strip | A water-impermeable ring of wax in the endodermal cells of plants that blocks the passive flow of water and solutes into the stele by way of cell walls. | 21 | |
| 1200543290 | root pressure | The upward push of xylem sap in the vascular tissue of roots. | 22 | |
| 1200543291 | guttation | The exudation of water droplets, caused by root pressure in certain plants. | 23 | |
| 1200543292 | cohesion-tension hypothesis | transpiration and water cohesion pull water from shoots to roots | 24 | |
| 1200543293 | xerophytes | Plants adapted to arid climates | 25 | |
| 1200543294 | circadian rhythms | Internally generated patterns of body functions, including hormonal signals, sleep, blood pressure, and temperature regulation, which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or night | 26 | |
| 1200543295 | abscisic acid | plant hormone that inhibits cell division in buds and vascular cambium | 27 | |
| 1200543296 | Phloem sap | a mixture of sugar, nutrients, and water that flows through phloem vessels in a plant | 28 | |
| 1200543297 | translocation | the transport of organic nutrients in the phloem of vascular plants | 29 | |
| 1200543298 | sugar source | A plant organ in which sugar is being produced by either photosynthesis or the breakdown of starch. Mature leaves are the primary sugar sources of plants. | 30 | |
| 1200543299 | sugar sink | A plant organ that is a net consumer or storer of sugar. Growing roots, shoot tips, stems, and fruits are sugar sinks supplied by phloem. | 31 | |
| 1200543300 | Plasmodesmata | an open channel in the cell wall of plants through which strands of cytosol connect from adjacent cells | 32 |
