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VEGETATIVE ORGANS

VEGETATIVE ORGANS. Výukový materiál OR 03 - 84 Tvůrce: Mgr. Alena Výborná Tvůrce anglické verze: ThMgr. Ing. Jiří Foller Projekt: S anglickým jazykem do dalších předmětů Registrační číslo: CZ.1.07/1.1.36/03.0005 Tento projekt je spolufinancován ESF a SR ČR. VEGETATIVE ORGANS.

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VEGETATIVE ORGANS

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  1. VEGETATIVE ORGANS Výukový materiál OR 03 - 84 Tvůrce: Mgr. Alena Výborná Tvůrce anglické verze: ThMgr. Ing. Jiří Foller Projekt: S anglickým jazykem do dalších předmětů Registrační číslo: CZ.1.07/1.1.36/03.0005 Tento projekt je spolufinancován ESF a SR ČR

  2. VEGETATIVE ORGANS

  3. VEGETATIVE ORGANS - root • it tightens the plant in the ground • it receives water and nutrients • storage function • tack function • aerial roots • roots of parasitic plants (mistletoe)

  4. VEGETATIVE ORGANS - root • storage function: • storage of various substances • root thickens • carrot • horseradish • tubers

  5. VEGETATIVE ORGANS - root • tack function: • clingy roots • attaching by creeping plants • ivy • airy roots: • they hang loosely from the plant stem • gaining water from atmospheric moisture • tropical plants

  6. VEGETATIVE ORGANS - root • parasitic roots: • parasitic plants • they embeds into the host tissue • they draw nutrients - mistletoe

  7. VEGETATIVE ORGANS - stem • it carries the organs of photosynthesis - leaves • it carries the organs of sexual reproduction –flowers • it leads solutions of nutrients and storage substances • it enables the growth • storage function – tuber (kohlrabi)

  8. VEGETATIVE ORGANS - stembranching

  9. VEGETATIVE ORGANS - stem

  10. VEGETATIVE ORGANS - leaf • the main role is photosynthesis • it controls water economy

  11. VEGETATIVE ORGANS - leaf • shapes of leaf blade: • simple • leaves have a coherent outline • composed • leaves are formed by separate small leaves • leaf margin: • entire • dentate • saw-like • double saw-like

  12. VEGETATIVE ORGANS – leaf margin

  13. VEGETATIVE ORGANS – composed leafs

  14. VEGETATIVE ORGANS – simple leafs

  15. VEGETATIVE ORGANS – simple leafs

  16. VEGETATIVE ORGANS – simple leafs

  17. REVISION: • 1) Vegetative organ not capable of photosynthesis is: • Root • 2) Branching stem can be distinguished: • Racemose, furcate and cyme-like • 3) What is the function of the leaf? • Photosynthesis, water economy • 4) Which plant has parasitic roots? • Mistletoe • 5) The storage root can be found for example in • Carrot, horseradish

  18. Sources of texts and pictures: • DOBRORUKA, Luděk J.: Přírodopis pro 7. ročník základní školy. 1. vyd. Praha: Scientia, 1998, 152 s. ISBN 80-718-3134-4

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