Question

Choose the odd one out of the following terms given and name the category to which others belong:

Girdling, bark, xylem, sap, swelling

Answer 1

Explanation :

1. The correct answer is sap.
2. The mixture of water and minerals which travels from the roots to the shoot system is called sap.

Explanation for the other words:

1. The girdling experiment is performed to prove that translocation of food occurs from the leaves to the other parts of the plants.
2. In the girdling experiment, a narrow ring of the bark of the stem below the leaves is removed without injuring the xylem.
3. After a few days, it is observed that the upper region of the ring has swelled up.
4. No such swelling is observed below the ring.

Hence, the odd one out is sap. The remaining words are related to the girdling experiment.