4 Transport- Xylem-Phloem

4 Transport- Xylem-Phloem - SI Leader Anita Vijapura Spring...

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Spring 2010 BSC2011 03/04 Transport through Xylem Water and minerals ascend from roots to shoots through the ________________. This is __________-distance transport of __________ sap. To move material upward, we can apply _______________ pressure from below or _______________ pressure from above. Plants lose a lot of water by ________________________. Unless this lost water is replaced by water transported up from _______________, the leaves will __________ and the plants will eventually _________. The upward flow of _______________ also brings _________________________ to the shoot system. Is sap pushed upward from the roots, or is it pulled upward by the leaves? 1) Pushing xylem sap via _________________________________ a. When? b. Why? c. How? d. Result: 2) Pulling xylem sap via ______________________________________________ mechanism a. ______________________ Pull i. Why? During photosynthesis, _________ enters the cell through stomata and water vapor diffuses from ____________ the leaf toward ____________. Explain. ii.
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4 Transport- Xylem-Phloem - SI Leader Anita Vijapura Spring...

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