Question

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Answer 1

Explanation:

Objective - Experiment to show a movement of mineral in xylem.

Requirement: Balsam plant, Beaker, Eosine solution (red dye forms from the action of bromine) and stand.

Procedure:

The shoot of Balsam plant which is leafy is placed in an Eosine solution.

After some time it is observed that the vein of leaves become red and shoot has red streaks.

Transverse section is cut and stained and found that it is xylem tissues.

This shows that the water is translocated in xylem tracheids and vessels.

Rest of the tissues remain unstained.

Conclusion:- From the above experiment, it is proved that xylem tissues are responsible for the translocation of water

Answer 2

Answer: Experiment to show movement of water through xylem:

Objective - Experiment to show a xylem as water conducting tissue.

Procedure:

1. Take a balsam plants and cut its two leafy shoots under water such that entry of air bubbles are prevented.

2. Now remove about 2-3 cm outer ring (phloem) of stem in one shoot while keeping the central part intact.

3. Remove the central part (xylem) of same length in second shoot.

4. Now observe the two shoots after two days.

5. It is found that the leaves of first shoot remain turgid while in second shoot leaves wilt and droop down. This proves that movement of water has occurred through xylem and reached up to leaves.

Conclusion:- From the above experiment, it is proved that xylem tissues are responsible for the translocation of water.