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Function of Stem in a Plant Video Lecture | Science Class 6

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FAQs on Function of Stem in a Plant Video Lecture - Science Class 6

1. What is the function of the stem in a plant?
Ans. The stem of a plant has several functions. One of its main functions is to provide support to the plant, allowing it to stand upright. The stem also serves as a transportation system, allowing water, nutrients, and sugars to move between the roots and leaves. Additionally, the stem helps in the storage of food and water, and it also plays a role in the reproduction of plants by bearing flowers and fruits.
2. How does the stem provide support to a plant?
Ans. The stem provides support to a plant by acting as a framework that holds the plant upright. It consists of cells that are elongated and strengthened with cellulose, a complex carbohydrate. These cells provide strength and rigidity to the stem, allowing it to withstand the weight of leaves, flowers, and fruits. The stem also contains specialized tissues called vascular tissues, which provide additional support by conducting water and nutrients throughout the plant.
3. What is the role of the stem in transporting water and nutrients?
Ans. The stem plays a crucial role in transporting water and nutrients between the roots and the leaves of a plant. It contains vascular tissues called xylem and phloem, which are responsible for this transportation. The xylem tissue carries water and minerals from the roots to the leaves, while the phloem tissue transports sugars and other organic compounds from the leaves to other parts of the plant. This transport system in the stem ensures that all parts of the plant receive the necessary resources for growth and development.
4. How does the stem store food and water?
Ans. The stem of a plant can store food and water in various ways. Some plants have specialized stems, such as rhizomes or tubers, which are modified to store nutrients and water. These storage stems allow the plant to survive during unfavorable conditions, such as drought or winter. Additionally, the stem also contains parenchyma cells that can store water and carbohydrates. These stored resources can be utilized by the plant during periods of high demand, such as flowering or fruiting.
5. How does the stem contribute to plant reproduction?
Ans. The stem plays a vital role in plant reproduction by bearing flowers and fruits. In flowering plants, the stem produces buds, which eventually develop into flowers. The flowers contain reproductive structures such as stamens and pistils, which are essential for pollination and fertilization. After fertilization, the stem supports the development of fruits, which protect the seeds formed after fertilization. The fruits may be dispersed by various means, promoting the spread and survival of the plant species.
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