Parts of a Seed• Seed Coat– protects seed • Embryo (baby plant) —beginning leaves, • Cotyledon—stored food stem and root Embryo —baby plant
Seeds• Seeds are formed in the center part of the flower or in the fruit. Fruits come from flowers.• Seeds come in many shapes and sizes.• Plants grow from seeds.
If a seed receives water and gets warm, thebaby plant (embryo) inside it starts to grow.The process of a baby plant beginningto grow is called germination. We saythe seed germinates or sprouts. The first part of the plant we see pushing its way out of the seed coat is the root.
Here we seepictures of abean seed anda corn seedgerminating(sprouting) andgrowing intoplants withroots, stemsand leaves.
Here is aspeeded uppicture of abean seedgerminatingandgrowing.
After the seedgerminates (sprouts)and grows into anadult plant, the plantflowers.It is the flower thatmakes seeds fornew plants to growand develop.This process from seed to adult plant toflower to seed is called:
The seeds are The seed absorbsThe scattered— water.flowers ready to grow.makeseeds. The root pushes through the seed coat. Life Cycle of a Bean Plant The seedling The stem (new plant) and its grows out of leaves grow the ground. toward the sunlight. The leaves make food for the plant.
Here isanotherdiagramof thelifecycle ofa plant
How a Seed Grows into a New Plant• The life of a plant begins as a seed.• Once a seed is watered and warmed, it germinates.• The root pushes through the seed coat.• The roots of the seedling grow down into the soil and the leaves and stem push out of the ground.• The stem and its leaves grow toward the sunlight.• The leaves make the plant’s food.• The flowers form and bloom.• New seeds are formed inside the flower or within the fruit that comes after the flower dies• The seeds are scattered and wait to start growing.
Two useful websites http://www.mbgnet.net/bioplants/parts.htmlThis next one is a exercise on the things that are necessary for a seedto germinate.http://www.ngfl-cymru.org.uk/vtc/factors_plant_growth/eng/Introduction/MainSession
Remember…When the embryo (baby plant) insidethe seed begins to grow, we say theseed sprouts or germinates. The young plant that grows from a seed is the seedling.The seedling grows into an adultplant and flowers.The flowers produce seeds.