THE ROOT SYSTEM – It is located below the ground, responsible for absorbing water and minerals from the soil as well as give firmness to the whole plant/tree. Parts of a Plant and Their Functions. The reproductive parts of the flower that are necessary for seed production are the stamen (the male organ) and carpel (the female organ). Flowers' beauty and fragrance evolved not to please humans but to attract pollinators (insects or birds), which are central to the reproductive process. The embryo is a miniature form of the plant that is fed by the nutrition contained in the endosperm. Aerial structures are those that grow above the Earth's surface, such as stem , leaves, flowers and fruits. List of parts of the plant with their functions . The parts-of-the-plant-and-their-functions chart for grade 2 and grade 3 gives a detailed description of the functions of each part of the plant. Plants are mainly classified into two parts: The Root System; The Shoot System. Perfect vs. Imperfect. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Sexual reproductive parts produce seed; they include flower buds, flowers, fruit and seeds. Parts and their functions - Chart. These easy seed science experiments are a great way for 1st, 2nd, and 3rd grade students to explore the parts of a seed and learn their functions as they dissect and label the inside of a seed. If a flower has both of these parts, it is called a perfect flower, even if it lacks some of the other key parts. Seed Science Experiments. The embryo is protected from the external environment by the seed coat. The three parts of a seed are the embryo, the endosperm and the seed coat. The main functions of the root system are absorption of water and minerals from the soil, providing a proper anchorage to the plant parts, storing reserve food material and synthesis of plant growth regulators. Flowers. Seed coat, micropyle, endosperm and embryo are major parts of a seed. 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