Question

Edible root is found in
A. Rice
B. Wheat
C. Potato
D. Sweet potato

Answer 1

Hint: Roots are one of the major parts of a plant. These are thread-like network structures that are embedded inside the soil. Roots can be found at the base of plants from where they are attached to the ground. They are modified based on different requirements of plants. Some roots get swollen and store food. These are called edible roots.

Complete answer: Roots make the most important plant parts as they are structures responsible for providing water and minerals to plants from the soil. Roots are the long thread-like structure that has succulent properties. Roots are of different types in different plant species. They are used to identify the taxa of plants. Roots are sometimes modified based on the requirement or need of the plant. In some plants, the roots serve the function of food storage. For this purpose, the roots become swollen. The swollen roots store carbohydrates and starch in the plant. Majorly, taproots that are cylindrical single extension roots undergo such modifications. Taproots become fleshy and are called tubers. These are irregular in shape having large amounts of carbohydrates and other nutrients stored in them. The aerial parts of plants having tuberous or fleshy roots are worn out. When suitable conditions arrive, new plants grow from the remnant base of the stem or from the root buds itself. It is seen in sweet potatoes. They are edible roots.
Therefore, the right answer is option D.

Additional information: a) Rice belongs to grass species. It is the seed of the plant that is eaten. It is the most economically important cereal.
b) Wheat is also a seed that belongs to grass species. It is equally important as a rice crop.
c) Potato is also a root vegetable but not a true tuber. It bears attached roots to its surface.

Note: Sweet potatoes are not closely related to potatoes. These are true tuberous roots that have lots of starch and possess a sweet taste. Despite its major use in culinary, sweet potato juice is also used as a dye for clothes.