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प्रश्न
Explain the term:
Ascent of sap
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उत्तर
- Ascent of sap is the upward movement of water and dissolved minerals from the roots to the aerial parts of a plant.
- This movement occurs through xylem vessels.
- Water is absorbed from the soil by the root hairs.
- It then travels upward through the stem to the leaves.
- The main driving force is transpiration pull caused by the evaporation of water from leaf surfaces.
- Other forces that help include root pressure and capillary action.
- The ascent of sap is essential for photosynthesis, cooling, and the transport of minerals in the plant.
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संबंधित प्रश्न
Name the conducting tissue in plants which is made of dead cells.
Very short answer question.
In which conditions transpiration pull will be affected?
Answer the following question.
Discuss theories of water translocation.
Explain capillarity theory.
Long answer question.
Explain cohesion theory for translocation of water.
Find the physical process NOT involved in absorption of water in plants.
The process in which the loss of water takes place in the form of water vapour through stomata is called:
Root pressure theory was proposed by ______.
Arrange and rewrite the terms in group in correct order to be in a logical sequence, beginning with the term that is underlined:
Water vapour, Soil water, Leaves, Ascent of Sap.
What are the four main forces which contribute to the ascent of sap (upward movement of water and minerals) ? Name them and explain in short.
