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Water ascends in plants through...

Water ascends in plants through

A

Xylem

B

Phloem

C

Stele

D

Pith.

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**Step-by-Step Solution:** 1. **Identify the Question**: The question asks about the pathway through which water ascends in plants. 2. **Understand the Options**: The options provided are xylem, phloem, steel, and pitch. We need to evaluate which of these is responsible for the upward movement of water. 3. **Define Xylem**: Xylem is a type of vascular tissue in plants that is primarily responsible for the transport of water and dissolved minerals from the roots to the rest of the plant. 4. **Function of Xylem**: The xylem vessels are structured in a way that allows them to form a continuous column from the roots through the stems to the leaves. This structure facilitates the upward movement of water, known as the ascent of sap. 5. **Process of Water Ascension**: Water enters the xylem cells in the roots and travels upward through the xylem vessels to the leaves. This process is driven by various factors, including transpiration (the evaporation of water from the leaves), which creates a negative pressure that pulls water upward. 6. **Evaluate Other Options**: - **Phloem**: This is another type of vascular tissue, but it is responsible for the transport of sugars and nutrients, not water. - **Steel and Pitch**: These terms do not refer to any known plant tissues involved in water transport. 7. **Conclusion**: Based on the function and structure of the xylem, the correct answer to the question is that water ascends in plants through the xylem. **Final Answer**: Water ascends in plants through **xylem**. ---
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DINESH PUBLICATION ENGLISH-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. Prolonged water-logging kills plant due to

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  2. Rate of water absorption is slow near freezing point because

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  3. Water ascends in plants through

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  4. Cohesion/transpiration pull theory of ascent of sap was proposed by

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  5. The force responsible for raising water in 100 ft tall plant is

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  6. Ascent of sap is

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  7. Water supply in the plant is due to

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  8. The principle by which blotting paper absorbs water is (a) Capillary ...

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  9. If cohesion-tension transpiration pull theory is correct, a break in w...

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  10. Plant cells dipped in distilled water will become (a) Turgid (b) Pl...

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  11. To initiate cell plasmolysis, salt solution should be

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  12. Water potential and osmotic potential of pure water are respectively

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  13. If a cell A with OP 10 bars and TP 4 bars is connected to cells, B, C...

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  14. Excessive supply of chemical fertilizers often causes wilting/death of...

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  15. Osmotic potential is depicted as

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  16. Potato slices were placed in sucrose solution . After half an hour, d...

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  17. A cell will become fully turgid if it is placed in

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  18. Dry wooden stakes in cracks of a rock and soaked will develop pressure...

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  19. Cells absorb water through

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  20. In plasmolysis, a plant cell

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