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Kingdom Plantae.

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

1 Kingdom Plantae

2 Plant Characteristics
Eukaryotic Multicellular Cell walls made of cellulose Develop from multicellular embryos Carry out photosynthesis Contain chlorophyll a & b Reproduce by alternation of generations

3 Plant Evolution First plants evolved from organisms similar to today’s multicellular green algae.

4 Plant Cladogram Ancestor Algae

5 Bryophytes Life cycle that depends on water so the sperm can swim to the egg. Lack vascular tissue, so they obtain water through osmosis Includes mosses, liverworts, & hornworts

6 Seedless Vascular Plants
Ferns, horsetails, club mosses Contain xylem & phloem (vascular tissue) Xylem – carries water up from the roots Phloem – transports products of photosynthesis


8 Seedless Vascular Plants
Have roots, stems, and leaves with veins Include club mosses, horsetails, and ferns. Ferns have rhizomes & fronds with sori Rhizomes – fern stems Fronds – fern leaves Sori – fern spores


10 Plant Cladogram Ancestor Algae

11 Spermatophytes Seed Plants
Have adaptations that allow them to reproduce without water Flowers or cones Transfer of sperm by pollination Protection of embryos in seeds Two types: Gymnosperms Angiosperms

12 Gymnosperms Bear their seeds directly on the surface of cones
Include conifers, ginkgo, cycads, and gnetophytes


14 Angiosperms Flowering plants
Bear seeds within ovaries which surround and protect the seed. Two types: Monocot Dicot

15 Plant Structure Flower Male reproductive structures - Stamen
Female reproductive structures - Carpal

16 Monocots All monocots have the following characteristics:
Single cotyledon – seed leaf Parallel veins Flower petals in multiples of 3 Vascular tissue scattered throughout the stem Fibrous roots

17 Dicots All dicots have the following characteristics:
Two cotyledon leaves Branched veins Flower petals in multiples of 4 or 5 Vascular tissue arranged in a ring Taproot

18 Angiosperm Life Spans Annuals – complete life cycle in one growing season Biennials – complete life cycle in two years First year: grow roots, short stems and sometimes leaves Second year: grow new stems, leaves, produce flowers and seeds Perennials – live many years

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