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Samenvatting anatomie van planten $0.00

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Samenvatting anatomie van planten

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Deze samenvatting omvat de verschillende kenmerken van de wortel van een dicotyl, de stengel van een dicotyl (primair en secundair) en het blad van een dicotyl. De kenmerken worden telkens aangeduid op microscopische afbeeldingen. De samenvatting is opgesteld op basis van de te kennen leerstof.

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  • October 14, 2022
  • 9
  • 2021/2022
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Anatomie van planten


1. WORTEL VAN EEN DICOTYL

Exodermis:
-> buitenste cellaag
-> vervangt epidermis
-> radiaal verlengde cellen met suberine (= verkurkte wanden)




Cortex (= schors):
-> zetmeelrijke parenchymcellen
-> talrijke intercellulairen (= schorsparenchym)




Endodermis:
-> tangentieel afgeplatte cellen
-> concentrische suberineafzettingen
-> doorlaatcellen




Doorlaatcel




Epidermis

, Pericyclus
-> éénlagig
-> dunwandige cellen

Geleidingsweefsel:
-> radiale of eenvoudige vaatbundels
-> weinig xyleemlamellen
-> proto oëem en protoxyleem liggen naar buiten toe
-> meta oëem en metaxyleem liggen naar centrum toe
-> centripetale ontwikkeling oëem en xyleem

Xyleem:
-> tracheae (= houtvaten)

Floëem:
-> zeefvaten
-> zustercellen

Grondparenchym:
-> centrale cilinder
-> smalle strook tussen xyleen en oëem




Grondparenchym



Metaxyleem




Floëem



Protoxyleem





fl fl fl

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