Potato: A Modified Stem

Potato is a modified form of stem. The stem of a potato is a stolon, which is an underground stem that grows horizontally. The stolon is swollen at various points, forming the potato tubers.

Difference Between Stem and Root

The stem is the part of the plant that supports leaves, flowers, and fruits. It also conducts water and minerals from the roots to the leaves. On the other hand, the root is the part of the plant that anchors it to the ground and absorbs water and minerals from the soil.

How Potato is a Modified Stem?

In the case of potato, the stolon is modified to store food for the plant. The stolons grow horizontally underground and the nodes along the stolon give rise to the tubers. The tubers are the swollen parts of the stolon that store starch and other nutrients for the plant.

Other Examples of Modified Stems

Potato is not the only plant that has a modified stem. There are several other plants that have modified stems, such as:

- Ginger: It has a rhizome, which is a modified stem that grows underground.
- Onion: It has a bulb, which is a modified stem that grows underground.
- Strawberry: It has a runner, which is a modified stem that grows above the ground.

Conclusion

In conclusion, potato is a modified stem that is used as a food source for humans and animals. The stolon of the potato plant grows horizontally underground and gives rise to the potato tubers. There are several other plants that have modified stems, such as ginger, onion, and strawberry.

Potato is a stem which developed on the underground stems which are named as stolons. Potato tubers have buds that sprout leaves and stems from them while roots do not possess these properties.
b option is correct