Question

Potato tuber is a modified or the edible part of the potato that is

• A. Root
• B. Stem
• C. Bulb
• D. Stolon

Answer 1

The correct option is B

Stem

The correct option is B.

Explanation of correct option:

1. The potato tuber has been modified and the edible part of the potato.
2. It is the modified stem.
3. They are modified to perform a variety of functions such as food storage, penetration organs, etc.
4. Tuber, bulb, corm, stolon, and rhizome are all stem modifications
5. A tuber is a thickened underground part of a stem.
6. It has buds that can produce a new plant through vegetative propagation.
7. A tuber contains a large amount of edible starch that can be eaten.
8. As a result, the edible portion of the potato is the stem.

Explanation of incorrect options:

Option A:

1. Roots are modified to provide support, food storage, and respiration.
2. Banyan tree prop roots, maize and sugarcane stilt roots provide support.
3. Pneumatophores in mangroves are meant for respiration.
4. They are modified roots.
5. Some roots, such as carrot and radish, have been modified for food storage.
6. During adverse conditions, the food stored in the roots is used.

Option C:

1. A bulb is a stem modification.
2. A bulb's stem is shortened to a disc, known as the basal plate.
3. Bulbils produce plants that are clones of the parent plant.
4. Examples: onion bulb, lilies.

Option D:

1. Stolon stems are horizontally modified stems that run below the soil surface.
2. These are found in gingers, strawberries, and other plants.
3. Stolon is also called runner.
4. Adventitious roots are modified into stolons.

Final answer: Potato tuber is a modified or the edible part of the potato that is the stem.