1. Angiosperms
Angiosperms are the most diverse and geographically most widespread plants
Have flowers and fruits with seeds
Two classes:
1. Monocotyledones (monocots)
2. Dicotyledones (dicots)
Insect pollination tightly linked to evolution of the flower.

2. Angiosperms Ecological Success of the Angiosperms
Able to survive in a greater variety of habitats than any other group of plants
Faster life cycle - mature more quickly than ferns or gymnosperms
Most produce greater number of seeds per year than gymnosperms
Animals aid in pollination - can survive as small scattered populations

3. Angiosperms Fruits for seed dispersal
Most diverse and specialized group
perennials or annuals
Leaves of angiosperms are thin blades, diversity of shapes, better adapted for light interception.
Xylem of angiosperms contains wide-bore vessels, allows faster conduction of water.
Woody tissue of angiosperms more complex and highly specialized

4. From the Greek Angeion = vessel Sperma = seed
Angiosperms
From the Greek
Angeion = vessel
Sperma = seed

5. Monocot vs. dicot
As the zygote grows into the embryo, the first leaves of the young sporophyte develop and are called as cotyledons (seed leaves)
Monocots have one cotyledon (corn, lily, etc).
Dicots have two cotyledons (bean, oak, etc).

6. Monocot vs. dicot
Number of cotyledons: one vs. two

7. Monocot vs. dicot Leaf venation pattern: Monocot is parallel
Dicot is net pattern

8. Monocot vs. dicot root
Monocot: Fibrous root
Dicot: Tap root

9. Monocot vs. dicot Flower parts: Monocot: in groups of three
Dicot: in groups of four or five

10. Monocot vs. dicot Monocot: Vascular bundle position:
Dicot: arranged in a circle

11. 2 groups of Angiosperms
Monocot

12. Summary: Monocot vs. dicot

13. Plants flower bud stem leaf roots 1 5 2 4 3 Plants
Name and spell each part of the plant.
roots 3
Produced by W Pallant

14. Leaves: Make food for plants which is sugar
Take in carbon dioxide through tiny openings in the leaves

15. Roots: Hold the plant in the ground
Take in water and nutrients for the plant’s growth

16. The Stem: holds up the plant parts above the ground.
has tiny tubes to transport
water and nutrients to the
plant’s parts.

17. What about flowers? Flowers are made of petals.
Petals attract insects to the flower.
The flower makes seeds.

18. The life cycle of a plant
2.Leaves start to grow.
3. More leaves grow. Flower buds appear.
1.Roots grow from a seed.
4. The flowers open.

19. Xylem & Phloem
Vascular tissue that moves water, minerals and nutrients from the roots to all parts of the plant

20. Angiosperm Basics all have flowers flowers are reproductive organs
They make up around 80 percent of all the living plant species on Earth.

21. c

22. male part of flower Angiosperms have male sex organs called stamens.
On the end of the stamen is the anther. This is where pollen is made.
The pollen has to be taken to the pistil or the female part of the flower.

23. female part of flower
The pollen is left on the stigma at the end of the pistil.
The stigma carries the pollen down a tube called the style to the ovary.
eggs are fertilized and develop into a seed in an ovary that is usually in a flower.

25. Pollination
Some plants can cross pollinate. This means they can pollinate themselves.
Others rely on pollinators.
Most species offer a nectar or pollen reward to insects or birds to attract them to the flowers. The colors and scents of flowers often assist pollinators in finding plants

26. From seed to Fruit
After fertilization the embryo begins growing. The result is a seed.
The ovary {tissue immediately surround the seed or seeds} will develop into a fruit
Every angiosperm, produces some type of fruit
Fruit serves to disperse the seeds the plant produces, which is very important.

27. When a plant flowers and produces seeds, it also produces something else we all like -- fruit. As you learned, when the ovary ripens, it swells and forms a protective covering around the seeds. This protective covering, or fruit, often finds its way on top of cereal, ice cream, a salad, or just a tasty snack.

28. Seeds
The seed's plant-parts are not "true" leaves, stem and roots, but are effective enough to the launch the plant into its growth phase when true leaves, roots and stems appear.

29. Seeds
Hidden inside every seed is a tiny embryonic plant complete with root, stem and leaves, ready to sprout when suitable conditions appear

30. What is their job? make food from light, air and water. Petals
Stems
Leaves
Roots
Flowers
get water from the soil.
help the plant stand up.
attract insects.
take food and water to the leaves
make seeds.