Question

1. Describe an experiment to demonstrate transpiration.
2. How does root pressure develop in the xylem vessels of the root?
3. Describe an experiment to demonstrate root pressure.​

Answer 1

Answer:

1. Experiment: To demonstrate the transpiration from the leaf surface, four banyan leaves are taken. Both the surfaces of the A leaf, lower surface (with stomata) of B leaf, upper surface (without stomata) of C leaf are vaselined. ... Now, as shown in the figure the leaves are hanged so that they may transpire freely.
2. 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. ... Water then diffuses from the soil into the root xylem due to osmosis. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells.
3. Root pressure is the force that drives water and nutrients into xylem upwards through plants. An experiment that can be used to demonstrate this force is by simply cutting a potted plant near the ground level and what is seen is water gushing out from the decapitated plant.

Explanation:

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Answer 2

Answer:

1.Experiment: To demonstrate the transpiration from the leaf surface, four banyan leaves are taken. Both the surfaces of the A leaf, lower surface (with stomata) of B leaf, upper surface (without stomata) of C leaf are vaselined. ... Now, as shown in the figure the leaves are hanged so that they may transpire freely.

2.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. ... Water then diffuses from the soil into the root xylem due to osmosis. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells

3.Root pressure is the force that drives water and nutrients into xylem upwards through plants. An experiment that can be used to demonstrate this force is by simply cutting a potted plant near the ground level and what is seen is water gushing out from the decapitated plant.

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