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Samenvatting H.11

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Moleculaire celbioliogie - Boek: essential cell biology - Samenvatting H.11

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  • No
  • H11
  • June 15, 2020
  • 4
  • 2017/2018
  • Summary

1  review

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By: Pravin11 • 4 year ago

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Moleculaire celbiologie - H.11 – 09/10/2017
Eisen van een membraan:
 Het moet informatie van buiten kunnen ontvangen
 Er moeten door het membraan stoffen in en uit kunnen
 Het moet kunnen bewegen

Functie membraan: compartimentering van verschillende mileu’s
Plasma membraam: buitenkant cel
Internal membraam: binnenkant cel

Apolair: hydrofoob
Polair: hydrofiel




 Een membraan bestaat uit een dubbele laag lipiden. De
bovenste groep van de polair kop kan verschillen (in dit
geval chlorine). Dit molecuul zorgt voor de polariteit van
de lipide. De kop kan dus verschillend zijn.




 Verschillende soorten lipiden


De hydrofiele koppen kunnen waterstofbruggen vormen.
Doordat de hydrofobe groepen in het midden naar elkaar
toe willen, vormen ze vanzelf een bolletje.

Micel: een laag fosfolipiden
Liposoom: dubbele laag fosfolipiden en hol in het
midden

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