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Summary Organiese Verbindings

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Hierdie opsomming bevat volledige verduidelikings en beskrywings van die Lewenswetenskap-hoofstuk genaamd “Organiese Verbindings”.Die opsomming bevat kleurvolle prente en illustrasies wat die leerwerk ń bietjie meer interessant maak.

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Institution
10th Grade

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organiese verbindings
koolhidrate

> bevat elemente C, H en O
>verhouding H:O is 2:1 kleinste molukulêre
bousteen
3 groepe volgens aantal monomere

monosakkariede -een suikermolekuul bv. glukose,fruktose en galaktose
disakkariede- twee suikermolekules bind bv. maltose,sukrose en laktose
polisakkariede-baie suikermolekules bind.bv stysel,sellulose,glikogeen,
chitien(selwand)

monosakkariede:
>word verder in groepe verdeel op grond van aantal koolstofatome in
struktuur
>>heksose 6 atome [C H O ]
>>pentose 5 atome [C H O ] - ribose isomere van mekaar
[C H O ] - deoksirobose
dehidrasiesintese-watermolekuul splits uit vir elke monosakkaried wat
aan ‘n ander een bind,om ‘n disakkaried en later ‘n polisakkaried te vorm
hidroliese-watermolekuul word benodig vir elke monosakkaried wat van
‘n ander een moet losbreek->vertering van di-en polisakkariede



*** 46 of 64

, vorming van disakkariede
- deur dehidrasiesintese
-> maltose + water
glukose+glukose <- want water is uitgesplits
C H O + C H O <--> C H O + H O

->
glukose + galaktose <- laktose + water
->
glukose + fruktose <- sukrose + water


hidrolise
funksies van koolhidrate

> glukose is energiebron vir selrespirasie
>stysel word gestoor as reserwe energiebron in plante se blare en sade
>glikogeen as reserwe energiebron in mense en diere se lewer en spiere
> sellulose = boustof van primêre plantselwande
>lignien = boustof van sekondêre versterkings plantselwande
>chitien- boustof van insekte se eksoskelette en fungi se selwande
toets vir glukose

-Gooi 10ml Glukose-oplossing in 'n
resultate
skoon proefbuis.
positief- verander na
-Voeg 5 druppels Fehlings-oplossing A
groen,geel en oranje
en B by die Glukose-oplossing.
negatief- BLY helder
-Verhit die proefbuis met
blou
-Glukose-oplossing versigtig oor 'n
bunsenbrander of in 'n waterbad.
*** 47 of 64

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Number of pages
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Written in
2024/2025
Type
SUMMARY
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