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.
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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