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Kingdom Plantae.

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Presentation on theme: "Kingdom Plantae."— Presentation transcript:

1 Kingdom Plantae

2 General Characteristics
Eukaryotic, multicellular organisms that carry out photosynthesis Cell walls contain cellulose Plants develop from embryos protected by tissues of the parent plant Includes mosses, ferns, conifers and flowering plants

3 Plant Life Cycle Alternation of Generations
One generation is haploid and the other is diploid Called the gametophyte and sporophyte generations Pg.435, fig

4 Non-Vascular Plants Lack true roots, stems and leaves and do not have specialized tissues to transport materials throughout the plant. Bryophytes: mosses, liverworts and hornworts


6 Vascular Plants Tracheophytes
Conducting tissues Xylem and Phloem, allows plants to grow much taller. Spore producing vascular plants. Seed producing vascular plants.

7 Spore-Producing Vascular Plants
Need water to complete life cycle Club mosses and Horsetails Most primitive tracheophytes Ferns (p.438) More widespred Fronds contain sporangia which contain spores

8 Seed-Producing Vascular Plants
Most successful plants on Earth Two main groups: cones and flowers Sexual reproduction occurs by pollination Do not need water to compete life cycle

9 Gymnosperms Conifers, gnetae, ginkgos and cycads (p.439)
Cones: specialized reproductive structures Male (pollen cone) and female (seed) cones

10 Angiosperms Flowering plants
Reproduce sexually by means of flowers and pollination Seeds are contained in a protective wall which develops into a fruit

11 Angiosperm Life Cycle Most successful plants on Earth
Using flowers as reproductive structures frees the need for water Ingenious seed dispersal methods Well protected seeds

12 The Flower Defining reproductive structure

13 Pollination Angiosperms have developed amazing variety of methods to transfer pollen from one flower to another. Self-pollination: pollen from the same plant fertilizes an egg cell Cross-pollination: more common. Pollen is transferred from one plant to another of the same species by wind, water or animals. Flowers are adapted to specific methods of pollination

14 Fertilization Pg. 442

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