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Plant Reproduction. Flower Parts Flowers are important in making seeds. Flowers can be made up of different parts, but there are some parts that are basic.

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Presentation on theme: "Plant Reproduction. Flower Parts Flowers are important in making seeds. Flowers can be made up of different parts, but there are some parts that are basic."— Presentation transcript:

1 Plant Reproduction

2 Flower Parts Flowers are important in making seeds. Flowers can be made up of different parts, but there are some parts that are basic equipment. The main flower parts are the male part called the stamen and the female part called the pistil.stamen and the female part called the pistil. The stamen has two parts: anthers and filaments.anthers and filaments. The anthers carry the pollen. These are generally yellow in color. Anthers are held up by a thread-like part called a filament.

3 The pistil has three parts: stigma, style, and ovary. The stigma is the sticky surface at the top of the pistil; it traps and holds the pollen. The style is the tube-like structure that holds up the stigma. The style leads down to the ovary that contains the ovules.

4 Other parts of the flower that are important are the petals and sepals. Petals attract pollinators and are usually the reason why we buy and enjoy flowers. The sepals are the green petal-like parts at the base of the flower. Sepals help protect the developing budPetals attract pollinators and are usually the reason why we buy and enjoy flowers. The sepals are the green petal-like parts at the base of the flower. Sepals help protect the developing bud

5 Flowers can have either all male parts, all female parts, or a combination. Flowers with all male or all female parts are called Imperfect ( cucumbers, pumpkin and melons) Flowers that have both male and female parts are called perfect (roses, lilies and dandelions)

6 Pollination When pollination occurs, pollen moves from the male parts to the female parts. Pollen grains land on the stigma and a tiny tube grows from it, down the style into the ovary. The fertilized ovule becomes the seed and the ovary becomes the fruit. The ovary first begins to grow into fruit, then the seeds develop.

7 Since flowers can't move, they need to be able to attract pollinators or be built so that wind is able to pollinate them. Flowers attract pollinators like bees, butterflies, insects, and birds with sweet nectar, bright colors, and shapes and structures. Some flowers open at special times to attract pollinators such as night blooming plants that are pollinated by bats

8 Non-flowering Plants Some plants don't produce flowers and seeds. Plants such as ferns and mosses are called non- flowering plants and produce spores instead of seeds. There is also another group called the Fungi, that include mushrooms, and these also reproduce by spores. We often think of these individuals as "non photosynthetic plants" when in fact they belong to their very own group or kingdom.

9 Spores are tiny specks of living material. Ferns produce spores on the undersides of their leaves. They look like tiny brown spots. This is how ferns reproduce.

10 Asexual Reproduction Plants that can grow from pieces or parts of a plant, such as stems or leaves, is a form of asexual or vegetative propagation. This is a type of cloning as the new plant is exactly the same as the parent plant. Another kind of vegetative reproduction is through the growth of underground bulbs or tubers, which become new plants.

11 What Are the Parts of a Flower? Most plants reproduce with the help of flowers. Name each part of the flower below

12 Part 1 is the sticky part of the pistil that pollen sticks to. Is it the anther, ovule, or stigma?anther, ovule, or stigma?

13 Part 2 is the long outgrowth of the ovary that supports the stigma that collects pollen from the stamens.Is it the pistil, style, or filament?pistil, style, or filament? The stigma is the sticky part of the pistil that pollen sticks to.

14 Part 3 the base part of the pistil that holds the ovules.Is it the ovary, petal, or stamen?ovary, petal, or stamen? The style is the long outgrowth of the ovary that supports the stigma that collects pollen from the stamens.

15 Part 4 contains the unfertilized seeds of the plant. Is it the receptacle, ovules, or pistil? receptacle, ovules, or pistil? The ovary is the base part of the pistil that holds the ovules.

16 Part 5 is the female part of the flower that contains the stigma, style, ovary and ovules. Is it the stamen, pistil, or sepal?stamen, pistil, or sepal? The ovules are the unfertilized seeds of the plant.

17 Part 6 is the part of the flower that holds the pollen. Is it the anther, filament, or stamen?anther, filament, or stamen? The pistil is made up of the stigma, style, ovary and ovules.

18 Part 7 is the long thread-like part of the flower that holds the anthers out so insects can get to the pollen. Is it the receptacle, filament, or stamen?receptacle, filament, or stamen? The anther is the part of the flower that holds the pollen.

19 Part the male part of the flower that is made up of the anther and the filament. Is it the receptacle, petal, or stamen? receptacle, petal, or stamen? The filament is the long thread-like part of the flower that holds the anthers out so insects can get to the pollen.

20 Part 9 is the colorful part of the flower that attracts insects and other pollinators. Is it the receptacle, petal, or sepal? receptacle, petal, or sepal? The stamen is the male part of the flower that is made up of the anther and the filament.

21 Part 10 is the top of the flower stalk that bears the flower parts. Is it the receptacle or sepal?receptacle or sepal? The petal is the colorful part of the flower that protects the flower and attracts insects and other pollinators.

22 There's only one very important part left. This is the part that covers the outside of a flower bud to protect the flower before it opens. Is it the corolla, sepal or budscale?corolla, sepal or budscale? The receptacle is the top of the flower stalk that bears the flower parts.

23 The sepal is the part that covers the outside of a flower bud to protect the flower before it opens.

24 Do All Plants Use Seeds to Reproduce? what about a strawberry? Does this plant reproduce by seeds? some other way? both seeds and some other way? both seeds and some other way?

25 A strawberry plant produces tiny seeds that are found in the fruit. But the plant also grows stems called "runners" that grow into the soil and form a new plant.

26 Now, what about a fern? Does this plant reproduce by seeds? some other way? some other way? both seeds and some other way? both seeds and some other way?

27 A fern reproduces by way of spores-- collections of female and male cells that are carried by the wind to a new location where they join together and form a new plant.

28 Now, what about a mushroom? Do mushrooms reproduce by seeds? some other way? both seeds and some other way?

29 A mushroom is a type of fungi—a group of saprophitic (you don’t need to remember this name ) plants. These plants don’t produce their own food from minerals, nutrients, water and sunlight using the process of photosynthesis, but rather must grow on decaying matter which provide food. Mushrooms reproduce by spores which grow on the underside of the cap.

30 Now, what about carrots? Do carrots reproduce by seeds?seeds? some other way? both seeds and some other way?

31 Carrots reproduce by seeds.

32 Now, what about a pine tree?Does this plant reproduce by seeds?seeds? some other way? both seeds and some other way?

33 A pine tree is a conifer--a type of plant where the seeds are found in cones.conifer--a type of plant where the seeds are found in cones.


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