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Angiosperms- Flowering plants

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Presentation on theme: "Angiosperms- Flowering plants"— Presentation transcript:

1 Angiosperms- Flowering plants
Key Features Produce seeds in fruit Flowers- promote pollination and fertilization Cross pollination or self pollination Fruit- protection and seed dispersal Endosperm- stored food for embryonic plant.

2 Fruits are produced only by flowering plants (angiosperms).
Fleshy, edible fruits serve as food for animals. Animals in turn spread the enclosed seeds of the fruits they eat and so disperse what will be the next generation of that plant. The coconut provides a good example of a fruit adapted for dispersal by water. Its corky, buoyant outer layer allows this fruit to be carried great distances by ocean currents before the seed within germinates on the seashore. Many dry, dehiscent fruits split explosively, flicking their seeds into the air where they are carried by the wind. Some fruits may have spines for attachment to animal fur, whereas others are winged or feathery for wind dispersal. Read more:

3 Alteration of generation in flowering plants
Alteration of generation in flowering plants. Gametophyte generation is dominant

4 Anther and Filament- male; produce pollen
Stigma, Style and Ovary-female; contains ovule. Pedals and nectar- attract pollinators Sepal- protects bud.

5 Pollination

6 Fertilization Pollen on the stigma produces a pollen tube. Pollen travels down the tube until it fertilizes the ovule producing a seed.

7 Seeds-dispersal Fleshy, edible fruits serve as food for animals. Animals in turn spread the enclosed seeds of the fruits they eat and so disperse what will be the next generation of that plant. The coconut provides a good example of a fruit adapted for dispersal by water. Its corky, buoyant outer layer allows this fruit to be carried great distances by ocean currents before the seed within germinates on the seashore. Many dry, dehiscent fruits split explosively, flicking their seeds into the air where they are carried by the wind. Some fruits may have spines for attachment to animal fur, whereas others are winged or feathery for wind dispersal. Read more:

8 Monocots vs. Dicots Angiosperms are divided into monocots and dicots
As the zygote grows into the embryo, the first leaves of the young plant develop and are called cotyledons (seed leaves) Monocots have one cotyledon (corn, lily, etc). Dicots have two cotyledons (bean, oak, etc).


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