| (i) Root pressure provides a light push in the overall process of water transport. |
| (ii) Root pressure causes the flow of water faster through xylem than it can be lost by transportation. |
| (iii) In symplast pathway, water move exclusively through the cell wall and intercellular spaces. |
| (iv) Guttation is a cause of transpiration pull. |
| (v) Most plants fulfill their water requirement by transpiration pull. |
A) (i), (ii) and (iii) are correct while iv and v are incorrect.
B) (iv) and (v) are correct while i, ii and iii are incorrect.
C) (i) and (v) are correct
D) (ii) and (iii) are correct while i, iv and v are incorrect.
Correct Answer: C
Solution :
[c] Root pressure, a manifestation of active water absorption is developed in xylem sap of roots of same plants. It maintains optimum metabolic activity and reduce transpiration and provide a light push in overall process of water transport because root pressure cannot transport water up to the whole length of plant. Movement of water is shown through xylem. In symplastic movements, movement of water occurs from cell to cell through their protoplasm, which are connected by a bridge called plasmodesmata.
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