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प्रश्न
Answer the following question.
Explain the role of transpiration.
थोडक्यात उत्तर
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उत्तर
Role of transpiration:
- It removes excess of water.
- It helps in the passive absorption of water and minerals from the soil.
- It helps in the ascent of sap.
- As stomata are open, gaseous exchange required for photosynthesis and respiration is facilitated.
- It maintains the turgor of the cells.
- Transpiration helps in reducing the temperature of leaf and in imparting a cooling effect.
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पाठ 6: Plant Water Relation - Exercises [पृष्ठ १३३]
संबंधित प्रश्न
Describe C3 Pathway.
Explain the root pressure theory.
What is transpiration?
Answer the following question.
What is the significance of transpiration?
Guard cells differ from epidermal cells in having
Match the columns:
| Column A (Scientist) | Column B (Theory) | ||
| (1) | Dixon and Joylly | (a) | Starch-sugar inter-conversion theory |
| (2) | Steward | (b) | Osmotic absorption theory |
| (3) | Atkins and Pristley | (c) | Non-osmotic absorption theory |
| (4) | Kramer and Thimann | (d) | Cohesion tension theory |
Write a short note on Structure of stomatal apparatus.
In plants, active absorption usually does NOT occur when ______.
Аccessory cells of stomata are reservoirs of ______.
Statement I - During night, guard cells become flaccid.
Statement II - During day time, guard cells become turgid due to endosmosis.
In light of above statements, choose the most appropriate answer from the option given below.
