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PLANTS SC-04-3.4.1 • Each plant or animal has structures that serve different functions in growth, survival, and reproduction. SC-04-3.4.3 • Plants and animals have life cycles that include the beginning of life, growth and development, reproduction and death. Ideas • Plants are made up of different parts. Each part has a certain job. These parts can also help us to identify plants. • There are seven basic requirements that plants need in order to grow properly. Plant Basic Needs • • • • • • • Room to grow Temperature Light Water Carbon dioxide (air) Nutrients Time Vocabulary • Plant Structures – “parts of the plant” – Ex. Leaves, root, stem, flower, seeds, fruit • Leaves – help the plant make food through a process known as photosynthesis. • Root – help hold the plant in place and take in water and nutrients the plant needs. • Stem – supports or holds up the plant. • Flower – helps the plant reproduce. • Seeds – are made from flowers when plants reproduce. • Fruit – the edible part of a plant which contains seeds. Plant Structures • • • • • • Roots Stems Leaves Flowers Fruits Seeds Roots Roots Functions • Most roots grow in soil or water. • The roots hold the plant in the ground. • A plant uses its roots to get water. • The water goes through the roots into the plant. • Some roots that we eat are: carrots, beets, turnips, radishes, and sweet potatoes. Stems Stem Functions • The stem is the part of a plant between the roots and the leaves. • The stem holds up the plant. • The stem also carries water and food through the stem to the plant. • Some stems that we eat are: celery, broccoli, asparagus, white potatoes, and sugar cane. Leaves Leaf Functions • A leaf grows on the stem or branch of a plant. • A green plant makes food in its leaves through a process known as photosynthesis. • The leaf has tiny holes that let water vapor and air pass through. • The leaves need sunlight, air, and water to make the food for the plant. • Some leaves that we eat are: lettuce, brussel sprouts, spinach, and parsley. Fruit and Seeds Fruit and Seed Functions • Seeds are made from flowers. • Many plants grow from seeds. • Fruits hold seeds. • Some fruits that we eat are: tomatoes, oranges, pears, watermelon, and strawberries Plant Parts Quiz • http://www.urbanext .uiuc.edu/gpe/case 1/c1m1a.html Flowers Structures of a flower • Petal – Surrounds the male and female parts and is brightly colored to attract insects which help pollinate the flower. • Stamen – The male part of the flower which produces pollen. • Pistil – The female part of the flower which contains the seeds. • Ovary – The part of the pistil which holds the flower’s seeds. • Pollen – The yellowish powdery substance on the stamen used to fertilize the plant. • Seeds – Found inside the ovary. Structures of a Flower Flower Functions • Flowers grow on the stem of plants. • Flowers make seeds. Many plants grow from seeds. • Flowers make fruits. Fruits hold the seeds of the plant. Lets see what you learned… • Draw a plant. Label its structures. • Explain the function of each structure. Don’t forget to tell how the function contributes to the growth, survival, or reproduction of the plant. • Draw a flower. Label its structures. • Explain the function of each structure. Don’t forget to tell how the function contributes to the growth, survival, or reproduction of the plant. What Am I ? Using the vocabulary worksheet, help your partner learn the names of plant parts by giving clues. For example, “I take in water and minerals from the soil. What am I ?” Give your partner one clue for each vocabulary word. Once you have completed the list with your partner, switch. Identification Draw and label the following parts of a plant. •Leaves •Roots •Flower •Fruit •Seeds •Stem