Question

How do you feel about transportation of water in huge trees?

SCERT Telangana Class 10 Biology Respiration

Answer 1

1.Root pressure can push water upwards by not more than few metres.
2.This pressure is enough to supply water from roots to leaves in small plants.
3 . however there are trees as tall as 80 to 120 meters like oak and red wood trees.
4.In such trees both transpiration and root pressure helps to pull water upwards by several meters away from against gravitation pull.
5.This kind of wonderful and natural mechanism can be seen only in plants.

Answer 2

Answer:

Explanation:

1) In huge trees like Red wood, water is transported to a height of 120 mts.

2) The root pressure and the transpiration pull are responsible for the water to reach such heights.

3) Water is absorbed by osmosis from the soil by the root hair and is passed into the

xylem vessels which form a continuous stream of tubes through root and stem into the leaves. .

4) Here the water evaporates and passes into the atmosphere.

5) Evaporation creates the main pull from the above root pressure gives a variable and minor push from below.

6) The result is a continuous column of moving water, the transpiration stream.

7) We should appreciate the root pressure and transpiration pull to conduct water to a great distance

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