In diesen Notizen befasse ich mich um die Biomembran. Der allgemeine Aufbau, die Biomembranmodelle, die Bestandteile und der Feinbau wird verinnerlicht.
Zum Schluss ist ein Arbeitsblatt, welches Wissen zu den Biomembranmodellen testet.
BAU DER BIOMEMBRAN
Phospholipide Membranlipide, die gleichzeitig einen hydrophilen (= wasserliebend) und einen hydrophoben (= wasserabweisend)
Bereich besitzen
unpolarer, hydrophiler Kopf
unpolarer, hydrophober Kopf
E Phospholipid-Doppelschicht
Fluid-Mosaik-Modell - in Biomembran sind Phospholipide in Doppelschicht angeordnet
-> hydrophile Bereiche nach aussen, hydrophobe Bereiche nach innen
- Phospholipd-Doppelschicht mehr oder weniger fluessig
- Membranproteine schwimmen darin unregelmaessig verteilt
periphere Proteine - Proteine, die auf Phospholipid-Doppelschicht aufgelagert sind
integrale Proteine - Proteine, die mehr oder weniger tief in Lipid-Doppelschicht eintauchen
A Phospholipid-Doppelschicht
B zellverbindendes Protein
C peripheres Protein
D Glykoprotein
E integrales Protein
F Glykolipid
G integrales Protein
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