Transport in Vascular plants
52755514 | membrane potential | the charge difference between a cell's cytoplasm and the extracellular fluid | |
52755515 | cotransport | the coupleing of a "downhill" diffusion of one substance to the "uphill" transport against its own concentration gradient | |
52755516 | chemiosomosis | energy coupling mechanism that uses energy stored in the form of H+ gradient a membrane to drive cellular work | |
52755517 | osmosis | solution from a lower solute concentration to higher solute concentration | |
52755518 | water potential | combined effects of solute concentration and physical pressure are incorporated into this measurement | |
52755519 | water potential= solute potential + pressure potential | formula for water potential | |
52755520 | pressure potential | the physical pressure on a solution | |
52755521 | turgor pressure | cell contents press the plasma membrane against the cell wall, creating this pressure | |
52755522 | plasmolyze | shrink away from a cell wall | |
52755523 | flaccid | limp | |
52755524 | turgid | firm | |
52755525 | aquaporin | transport proteing in the plasma membrane of the plant that specifically facillitates the diffusion of water | |
52755526 | vacuole membrane | {tonoplast} regulates molecular traffice between the cytosol and the other vacuolar contents | |
52755527 | symplast | the continuum of cytoplasm connected by plasmodesmata | |
52755528 | apoplast | the continuum of cell walls plus the extracellular spaces | |
52755529 | lateral transport | {short distance transport} | |
52755530 | transmembrane | transport--repeated crossing of plasma membrane as the solutes exit one cell and enter the next | |
52755531 | symplastic | {Transport} after entering one cell, solutes and water can then move from cell to cell via plasmodesmata | |
52755532 | apoplastic | {transport} the continuum of cell walls plus the extracellular space | |
52755533 | phloem | In the ____ the loading of sugar generates a high positive pressure at one end of sieve tube , forcing sap to the opposite end of the tube | |
52755534 | xylem | In_____it is actually tension (negative pressure) that drives long distance transport | |
52755535 | transpiration | the evaporative loss of water from a plant | |
52755536 | endodermis | innermost layer of cortex in plant roots | |
52755537 | root pressure | the upward push of xylem sap in the vascular tissue of roots | |
52755538 | cohesion | the binding together of like molecules | |
52755539 | adhesion | the attraction between different kinds of molecules | |
52755540 | circadian rythm | cycle tjat is present in all eukaryotic organisms | |
52755541 | xerophyte | plant adapted to an arid clmiate | |
52755542 | translocation | transport of organic nutrients in the phloem of vascular plants | |
52755543 | sugar sink | organ that is a net consumer or storer of sugar |