Unlike the movement of water in the xylem, phloem sap movement is not defined by gravity. It can move upward and downward in the plant. During very hot weather, when the plant root is converting sugar to store as starch, state the role of root and leaves. Tidak seperti pergerakan air di dalam xilem, pergerakan sap floem tidak ditentukan oleh graviti. la boleh bergerak ke atas dan ke bawah di dalam tumbuhan. Semasa cuaca sangat panas, apabila akar tanaman menukar gula untuk disimpan kanji, kenal pasti peranan akar dan daun. Source Punca: Sink Sinki:

Unlike the movement of water in the xylem, phloem sap movement is not defined by gravity. It can move upward and downward in the plant. During very hot weather, when the plant root is converting sugar to store as starch, state the role of root and leaves. Tidak seperti pergerakan air di dalam xilem, pergerakan sap floem tidak ditentukan oleh graviti. la boleh bergerak ke atas dan ke bawah di dalam tumbuhan. Semasa cuaca sangat panas, apabila akar tanaman menukar gula untuk disimpan kanji, kenal pasti peranan akar dan daun. Source Punca: Sink Sinki:

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter30: Plant Form And Physiology

Section: Chapter Questions

Problem 3VCQ: Figure 30.34 Which of the following statements is false? Negative water potential draws water into...

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Ground tissue in monocot stems performs the same functions as _______________ and _______________ in herbaceous eudicot stems. (a) phloem; xylem (b) cork cambium; vascular cambium (c) epidermis; periderm (d) primary xylem; secondary xylem (e) cortex; pith
Water potential is (a) the formation of a proton gradient across a cell membrane (b) the transport of a watery solution of sugar in phloem (c) the transport of water in both xylem and phloem (d) the removal of sucrose at the sink, causing water to move out of the sieve tubes (e) the free energy of water in a particular situation
Figure 30.34 Which of the following statements is false? Negative water potential draws water into the root hairs. Cohesion and adhesion draw water up the xylem. Transpiration draws water from the leaf. Negative water potential draws water into the root hairs. Cohesion and adhesion draw water up the phloem. Transpiration draws water from the leaf. Water potential decreases from the roots to the top of the plant. Water enters the plants through root hairs and exits through stoma.
________ are made up ofsclerenchymatous cells. These aregenerally absent in the primary phloembut are found in the secondary phloem.A. Xylem fibresB. Xylem parenchymaC. Phloem parenchymaD. Phloem fibres
which of the following concernig roost is incorrect? a. monocot roots exhibit primary grwoth and secondary growth b. dicots roots are called taproots c. dicots are called perennials because they exhibit secondary growth d. monoct roots form fibrous roots e. secondary growth causes the xylem and phloem to increase in diameter.
Which plant water movement process is dependent on transpiration? root pressure capillary action cohesion-tension all of the above
The exudation of xylemsap drop on the edge of leaves is called
Plant experiencing cavitation may exhibit signs of ________. Cavitation is observed in the _____ Select one: a. decreased photosynthesis, phloem b. drought stress, phloem c. drought stress, xylem d. enhanced photosynthesis, xylem e. enhanced photosynthesis, leaves Clear my choice
Which of the following statements are true for root endodermis?I. Endodermal cells constitute the innermost layer of root cortex and surrond the vascular cylinder (xylem and phloem). II. Endodermal wall is covered with waxy layer of casparian strip which blocks apoplastic transfer of minerals.III. Due to presence of casparian strip, water and minerals can only eneter the vascular cylinder if they will be able to cross the plasma membrane of an endodermal cell.
Radical vascular bundles are those in which: A. xylem is surrounded by phloem B. phloem is surrounded by xylem C. xylem and phloem occur on the same radius D. xylem and phloem occur on the different radii