Question

Which of the following is not a modified leaf?

• A. Leaf tendril
• B. The pitcher of pitcher plant
• C. Potato
• D. Spines

Answer 1

The correct option is C

Potato

The correct option is C:
Explanation for the correct option:

1. Parts of plants are modified to perform various functions apart from the main function. These changes are known as modifications.
2. The stem which is modified is known as the modified stem.
3. The excess food produced in the plants is stored in the stem, these stems are known as storage stems or tubers.
4. Potato is an underground stem and an example of storage stem modification.
5. It is not related to leaf modification.

Explanation for incorrect options:
Option A:
1. Narrow, tubular, cylindrical structures known as tendrils are leaf modification that provides support to the plant's body. Examples: peas, grapevine.

Option B:
1. In pitcher plants, the leaf and the parts of the leaf are converted into a pitcher-like structure in which insects are caught and digested.

Option D:
1. Spines are needle-like structure that is derived from leaf modification. It provides protection from animals and reduces the loss of water.

Final answer:

Potato is not a leaf modification but a stem modification.