difference between root pressure and transpiration pull in tabular form 3 points
Answers
Answer: Difference between root pressure and transpiration pull in tabular form 3 points
Explanation:
Transpiration
1. A process in which the moisture and other gaseous wastes are excreted through the stomata of the leaf, lenticels of the stem and fruits are termed as Transpiration.
2. In this process, the water absorbed by the root tips are excreted out into the atmosphere by the leaves and stems of respective plants to keep the plants cool and to allow the root to absorbs more water and other important nutrients from the soil.
3. Light, humidity, temperature, wind and the leaf surface are the factors affecting the rate of transpiration in plants.
Root pressure
1. Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when transpiration is low during the day.
2. When transpiration is high, xylem sap is usually under tension, rather than under pressure, due to transpirational pull.
3. At night in some plants, root pressure causes guttation or exudation of drops of xylem sap from the tips or edges of leaves.