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Plant Reproduction.

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Presentation on theme: "Plant Reproduction."— Presentation transcript:

1 Plant Reproduction

2 Fruit & Seed Dispersal

3 Giant Kelp also a Protist!

4 Green Algae

5 Gymnosperm & Angiosperm Seeds

6 Flowering Plants: Monocot & Dicot Seeds

7 Mosses

8 Fruit of a Peanut Plant Forms in the ground
Fertilization of an egg & pollen makes a seed Fruit is the ovary around the seed

9 Pineapple Fruit

10 Plants: Nonvascular & Vascular

11 Honey Possum & Bee Pollinators

12 Fruit & Seed Dispersal

13 Pollination versus Fertilization
Pollination: Mechanical Transfer of pollen: Fertilization: Joining Of pollen(sperm) with The egg in ovary

14 Cone Bearing Plants Gymnosperms Cones “naked” seeds No ovaries Pollen

15 Ovaries surround the seeds
Seed = Fertilized egg Ovary becomes the fruit

16 Roots

17 Stems

18 The stem of a plant provides pathways for the distribution of water and nutrients between the roots, leaves, and other parts of the plant. The herbaceous stem of the dandelion (top, center) lacks lignin, the stiffening material in rigid, supportive woody stems. For this reason, herbaceous plants are generally limited in their physical size. Spurges and cacti (bottom, left), their leaves reduced to needles to prevent evaporation in a dry climate, consist entirely of stem material. Tubers, such as potatoes (top, right), are swollen, food-storing, underground stems that nourish growing buds. The stems of some plants are adapted for protection, as in the hawthorn (bottom, right). Others actively compete for sunlight, using touch-sensitive, curling tendrils (top, left) or other structures to climb upwards. Dorling Kindersley;Harry Taylor/Oxford Scientific Films "Stems," Microsoft® Encarta® Encyclopedia © Microsoft Corporation. All rights reserved.

19 Stem Structure

20 Grafting apple varieties

21 Parts of a Flower

22 Ferns: Frond & Fiddleheads

23 Fern Sporangia Underside of frond Spore Capsule Contains Spores
Asexual 1N

24 Ferns & Mosses Require Wet Environments:
Gametophyte sperm cells Need water to swim to egg!

25 Alternation of Generations
Sporophyte makes spores Fertilization=2N zygote Gametophyte makes gametes

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