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Vacular Plants

Vacular Plants. 13.3 SBI 3U. What is a Vascular Plant. A plant that can internally transport water and food is called a vascular plant. The Vascular Plants. Tracheophytes: Plant with conducting tissues that transport water and nutrients

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Vacular Plants

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  1. Vacular Plants 13.3 SBI 3U

  2. What is a Vascular Plant • A plant that can internally transport water and food is called a vascular plant

  3. The Vascular Plants • Tracheophytes: Plant with conducting tissues that transport water and nutrients • Xylem: Vascular tissue that conducts water and minerals from the roots to the leaves of the tracheophyte • Phloem: Vascular tissue that transports carbohydrates from the leaves to the other parts of the plant • Tracheophytes are known as Vascular Plants because of this feature • The vascular plants are divided into 2 groups • The spore producing plants • The seed producing plants

  4. Spore Producing Vascular Plants • Club mosses and Horsetails • The club mosses and horsetails contain the smallest, most primitive members of the tracheophytes • One variety of horsetail grows up to 10 m high • Tracheophytes were the dominant form of plants. Now the fossilized remains are used as coal Club mosses Horsetails (Sphenophyta)

  5. Spore Producing Vascular Plants • Ferns • Closely related to club mosses and horsetails, but more widespread • 12 000 species of ferns can be found from the arctic to the tropical rain forests • They mostly habituate the shady and wet environments • Leaves of ferns are known as fronds • Underground stems called rhizomes • Ferns produce spores in sporangia (underside of fronds) • Ferns need water to continue their life cycle because sperm have to swim to the archegonia to fertilize the eggs

  6. Seed Producing Vascular Plants • The seed producers are the most successful plants on earth • Because of their specialized organs • Leaves, stems and roots • Allowed them to adapt to many different types of environments • Produce either cones or flowers • Both groups go through sexual reproduction (pollination) • Because of pollination, seed producers do not need water to survive and can adapt to dry environments

  7. References • Bowers, Ray. Addison Wesley biology 11. Toronto: Addison Wesley, 2002. Print. • Google

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