General Knowledge - Biology - Discussion

I think it is not a stem tuber because tubers swell from underground but not from the shoot.

Potato is a modification of stem or simply underground stem modification.

Potato are stem tubers. Enlarged stolons thicken to develop into storage organs. The tuber has all the parts of a normal stem, including nodes and inter nodes. The nodes are the eyes and each has a leaf scar. The nodes or eyes are arranged around the tuber in a spiral fashion beginning on the end opposite the attachment point to the stolon.

The terminal bud is produced at the farthest point away from the stolon attachment and tubers thus show the same apical dominance as a normal stem. Internally, a tuber is filled with starch stored in enlarged parenchyma like cells. The inside of a tuber has the typical cell structures of any stem, including a pith, vascular zones, and a cortex.

1. The stem is normally divided into nodes and inter nodes.
2. Lateral buds and leaves grow out of stem at intervals called nodes.
3. The intervals on the stem between the nodes are called internodes.
4. The number of leaves that appear only at a node depends on the species of plant.

No the answer is correct. Potatoes are stems as they even have nodes and Internodes. And foolishly even grows underground.

But I think potato is a root so I am unable to understand why the answer is root please specify.

Yes, the potato is also called solanum tuberosum it is swallen apex of the underground branch.

How could it be stem? The Answer is root.

What is potato node and internode?

It is a stem because characteristic of stem such as bud node are seen in potato. It store a food like sugar cane.