Advertisements
Advertisements
प्रश्न
Briefly explain, how transpiration helps in upward conduction of water in plants?
उत्तर
Transpiration helps in the upward conduction of water in plants through the transpiration pull mechanism. As water evaporates from the stomata of leaves, it creates a negative pressure (suction force) in the leaf cells. This draws water upward from the xylem vessels in the stem and roots. The cohesive and adhesive properties of water molecules help maintain a continuous column of water, allowing it to move against gravity from the roots to the leaves. This process is essential for nutrient transport and maintaining plant hydration.
APPEARS IN
संबंधित प्रश्न
What causes the opening and closing of guard cells of stomata during transpiration?
Fill in the blank with the suitable term given below:
Transpiration is more when the wind is blowing _____.
Fill in the blank:
Water is lost from the leaves by__________.
Differentiate between osmosis and transpiration.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
Name the phenomenon being demonstrated.
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Name the process being studied.
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Why was the pot covered with a plastic sheet?
Stamen has two parts called ______ and ______.
Write a note on Transpiration.
Describe briefly the three physical properties of water which helps in ascent of water in xylem.
