1 / 19

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.

acorona
Télécharger la présentation

VEGETATIVE ORGANS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related