Answer: Potato tuber is considered as a stem because of the following reasons (i) The tuber has nodes and internodes. (ii) Leafy shoots appear from the nodes.
Why is potato tuber considered as a stem Though it is an underground part and give two reasons?
On arrival of appropriate conditions, the tubers propagate. The stored food in tubers is used to grow stems. Therefore, the potato is an underground stem because it possesses axillary buds called eyes. They are underground stems not because they lack chlorophyll.
Why potatoes are considered as stem give reason?
– Potato is considered as a stem because it has many nodes called the eye and space between each eye is called the internodes. The eye of the potato can develop into a shoot and a new plant. Thus it is a stem vegetable.
What are two examples of underground stems?
Types of underground stems
Tulips, daffodils and Lilies. Corm – Short, upright, hard or fleshy stems covered with thin, dry papery leaves. Rhizome – With reduced scale like leaves.
Is potato tuber a stem?
Potatoes are stem tubers – enlarged stolons thicken to develop into storage organs. The tuber has all the parts of a normal stem, including nodes and internodes.
What is the function of stem in a potato plant Class 6?
Stems are usually above ground, although the stems of some plants, such as the potato, also grow underground. Stems may be herbaceous (soft) or woody in nature. Their main function is to provide support to the plant, holding leaves, flowers, and buds; in some cases, stems also store food for the plant.
Why potato is a stem and sweet potato is a root?
Solution : Potato is underground tuber (stem) on which nodes and internodes with adventitious buds (in eyes) are present. Scale leaves are absent. Sweet potato is underground modified tubercled adventitious root which is non-green and swollen. Scale leaves, nodes, internodes are absent.
Why are potatoes considered stems and not roots Class 6?
As i said earlier, potato have buds on it, which under the right conditions can lead to the growth of a new plant. Actually the presence of these buds make it a stem, because roots do not havr buds from which new plants can come.
What is the stem of a potato called?
More or less 10-20 potatoes can grow from one single potato plant in on time cultivation. Though potato seems to be a root, it is a stem. It is actually a modified stem usually called tuber. As the tubers grow underground, they are connected by small stem sections called stolons.
What features of a potato should identify it as a stem rather than a root?
Potatoes are stems or modified stems to be more precise. The fact that they have nodes, internodes, terminal bulbs, lateral buds qualifies them as a stem and not a root.
What are underground stems called for class 3?
Rhizomes: They are underground parts of a plant from where parts above the plant grow. They are known as the root stalks of a plant.
What is an underground stem called?
Rhizomes are underground stems which grow beneath the surface of soil; they are frequently fleshy and serve as organs of food storage. Sometimes the rhizomes are condensed into solid swollen forms which are then known as corms. The tubers are also underground parts, which may either be modified roots or stems.
How tubers are formed from the underground stems in potatoes?
As the potato plant grows, its compound leaves manufacture starch that is transferred to the ends of its underground stems (or stolons). The stems thicken to form a few or as many as 20 tubers close to the soil surface. The number of tubers that actually reach maturity depends on available moisture and soil nutrients.
Is potato the stem of a plant?
A potato is classified as a stem. Because it has many nodes known as eyes. The space between each eye is internodes. The potato eye grows into a shoot and a new plant.
What are stem tubers give example?
Tubers growing underground are connected to the original stem by new stem-like off-shoots called stolons. Characteristics of a stem tuber include leafy plants, high starch content, and a tendency to grow near the soil’s surface. Common examples edible of tubers include potatoes, jicama, sunchokes, and yams.
How does the stem help the plant mention three important points?
The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.
What are 3 main functions of a stem?
A stem performs the following functions in a plant: (i) It supports branches, leaves, flowers, and fruits. (ii) It transports water and minerals from the roots to the leaves and other parts of plants. (iii) It transports food from leaves to different parts of the plant.
What are the 4 types of stems?
Decumbent: stems that lie flat on the ground and turn upwards at the ends. Fruticose: stems that grow shrublike with woody like habit. Herbaceous: non woody, they die at the end of the growing season. Internode: an interval between two successive nodes.
What is the name of the stem modification used in potato?
Potato, on the other hand, is a stem that grows from underground stems. Stolons are the name given to these underground stems.
How can we say that potato is a modified stem and sweet potato is a modified root class 6?
Note: The ends of stolon get swollen and form a tuber. Potato is a stem whereas sweet potato is a root. This is because the stem of the potato undergoes modifications to store food. Whereas in a sweet potato, the roots undergo modifications in order to store the food.
Is sweet potato is a stem or root?
root tubers
Potatoes and yams technically have modified belowground stems (“stem tubers”) while sweet potatoes have “root tubers.”