Question

Why is potato an underground stem and a sweet potato is a root if they come under the same category?

Answer 1

Answer:

Potato is a stem and sweet potato is a root because the stem of the potato has undergone modifications in order to store food whereas in a sweet potato the root has undergone modifications in order to store the food.

In certain plants, the roots, stem, and leaves undergo modifications to store food in order to use under unfavourable conditions.

The modified stems are usually called as ‘tubers’ and the modified roots are usually called as tuberous roots or storage roots.