potential (v) can be thought of as the tendency for water to move from oee place
ID: 186491 • Letter: P
Question
potential (v) can be thought of as the tendency for water to move from oee place to another In plants, it is made up mainly of solute potential and pressure neither, cells A and B are in equilsbrium with each other O from cell A to cell B Water adjacent to each other. The solute potestial. Hypotetical plant cell A and B ae MPa. In which direction will net water movement occur? from cell B to cell A QUESTION 6 1 points Save Anver Pines have needlelike leaves, with the adaptive advantage of- O increased surface area, increasing photosysthesis Oincreased surface area, increasing gas exchange O decreased surface area, reducing gas exchange O decreased surface area, reducing water loss t points Sav QUESTION As an undergraduate research assistant, your duties involve measuring water potestial in esperime snder nomal ng conectly depicts the treed your measuremsent data should Sollew if the cohesice tension mechassm is eperating ntal sold-plant-atmosphere systems Assume you make a series of measurements in a system de light condtios ingWh orae vatmosphete vleaves - vroots vsoi vieil e vroots vleaves vatmosphere 112.Explanation / Answer
5. Second option that is from cell A to cell B is the correct answer. The relation between water potential, solute potential and pressure potential is as follows: Water potential = solute potential + pressure potential. Thus the water potential value of cell A = -0.35 + 0.15 = -.20 and cell B = -0.30 + 0.05 = -0.25. Here the value of water potential for cell A is higher than B and as we know water moves from higher potential to lower water potential, the movement of water will be from cell A to cell B.
6. Option last is correct. Needle shaped leaves have much less exposed surface area in comparison to flat leaves. As we know more the exposed surface area more transpiration will occur through stomata and thus needle shaped leave is an adaptation to reduce the water loss through transpiration.
7. Last option is the correct answer. Water moves from higher water potential to lower water potential. Since water moves from soil to the atmosphere via root and leaves by the process of transpiration using cohesion-tension mechanism. Thus, the value of water potential is highest in soil and least in atmosphere.
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