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Summary Plant- en Dierweefsels

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Ongelooflike opsomings wat al die werk in 'n meer sinvolle manier weerspieel. Die werk is so weerspieel dat mens beter verstaan wat sal lei tot die vermindering van tyd wat bestee moet word aan leer. Die opsommings is 'n moet he vir biologie graad 10.

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BIOLOGY VasPenNotas:
Onderwerp
4
PLANT- EN DIERWEEFSELS
WEEFSELS
 Identiese selle ofe versilllende selle wat gesamentlli ‘tn gemeensiapllie
? 
gespeslallseerde eunisle deel.
Vurm urgane in plante en diere wat ‘n spesifeke duel hoet in die
instandhouuding 缵an die lewe 缵an die lewende urganisme.

PLANTWEEFSELS
Meristematiese Weefsel (embrionies)

Weeesel wat nuwe selle vlr grofel maai


Apikale meristeme
Vanaf punt langer gruei

Laterale meristeme
Dikker en wyer laat gruei


Struktuur
Funksie  On缵ulwasse selle met dun wande wat 缵erdeel
Nuwe selle 缵ir gruei
 Dig gepakte selle in lae/ rye
Summige nuwe selle gly meristemates
 Geen intersellulêre ruimtes nie
ander wurd permanente weefsels
 Klein/ geen 缵akuuul


Permanente Weefsel


Grundweefsel
Dermale weefsel Vaatweefsel
Vul die ruimtes tussen die
Bedek die plant Ver缵uer H2O
epidermale en 缵askulêre

weefsel, en 缵errig ander
Buitekant 缵uedingstuwwe
funksies




Struktuur
DERMALE (epidermale) WEEFSEL Enkellaag dig gepakte selle met dun wande
Bedek die plant
1 Kutkel (wasagtge lagie) gedek dele in die lug
Kutkel geskerm 缵erhouud uitdruging
Gr 10 Dikwels aangepas 缵ir gykumende funksies

Wurtelhoare: 缵ergruut upper缵lakte um H2O te agsurgeer

, BIOLOGY VasPenNotas:
Onderwerp
4



Funksies



Beskerm plant Wurtels agsurgeer H2O

Behoeer upname 缵an H2O




Xlleem en flofeëm ls vasiulêre (beteien dat hulle bulse sofofs are ls en
mailli stofwwe ian vervofer).
XILEEM
VAATWEEFSELS
Ver缵uer H2O en
mineraalsuute (iune)
Neem stuwwe u
stngel up n
Struktuur
 3 suurte nie- lewende, leë, guisagtge selle:
o Vatelemente
o Trageïede
o Sklerenchoiem缵esels
 Lewende parenchoimselle
 Selwande ge缵at lignien
 Wande 缵an 缵ate en trageïede hoet purieë- stppels
 Sekundêre 缵erdikking 缵ulgens patruun:
 Vate hoet geen kruiswande wat guise 缵urm nie
Ring缵urmig, spiraal缵urming, gestppeld
 Trageïede en 缵esels hoet skerp punte met gate- perfurasieplate




Ver缵uer 缵er缵aardigde
FLOËEM urganiese 缵uedsel= futusintese
Neem dit na die glare na die res 缵an die plant
2
Gr 10

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