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samenvatting biologie: de cel, transport doorheen membraan en enzymen, 5de jaar ASO

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samenvatting biologie: de cel, transport doorheen membraan en enzymen, 5de jaar ASO Boek: FOCUS Biologie 5

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Biologie
Protoplasma: alle levende inhoud cel
Cytosol: waterige vloeistof van het cytoplasma
EM(Ernst Ruska): TEM en SEM! Tot 0.2nm
TEM: elektronen door preparaat en botsen weer omhoog
SEM: bombardeert he preparaat deel per deel met elektronen
Celstructuren met membraan: celorganellen

plant dier
Celwand X celwand
X flagellen Soms lysosomen
X centriolen Soms vacuole
Geen plastiden

= 6-hoek = cirkel

Celwand:
- Chitine
- Cellulose
- Cellen tegen elkaar: middenlamel
- Plasmodesmata: celmembranen onderling
- soms: hout  secundaire celwand
- Functie: stevigheid en uitwisseling stoffen

Celmembraan:
- Fosfolipide (vetachtige molecule) dubbellaag: openingen sluiten
o Hydrofiele kop
o Hydrofobe staart
- Cholesterol: vermindert beweeglijkheid
- Transportproteïne: transport doorheen membraan
-  selectief permeabel
- Glycoproteïne en lipiden: stabiliteit en herkenning
- Receptorproteïne: communicatie

Cytoskelet: structuur, vorm en stevigheid
- Microtubuli: transport, basis flagellen, celsplitsting
- Microfilamenten: cel beweging
- Intermediaire filamenten: positioneren celorganellen

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Institution: Secondary school
Study: 3e graad
Course: Unknown
School year: 5

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Uploaded on: November 27, 2023
Number of pages: 3
Written in: 2023/2024
Type: SUMMARY

Subjects

biologie
de cel
transport
enzymen
afbraak
cellen
samenvatting de cel
vijfde jaar biologie
vijfde jaar cellen
cellen biologie
transport doorheen membraan

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samenvatting biologie: de cel, transport doorheen membraan en enzymen, 5de jaar ASO

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