In dieser pdf-Datei habe ich das Kapitel "Zellbiologie" zusammengefasst. Es umfasst den detaillierten Aufbau einer Tier- und Pflanzenzelle, den Aufbau und die einzelnen Funktionen der Zellorganellen, den Aufbau der Biomembran und das Thema "Osmose".
Intermediärfilamente → dünne, netzwerkartige Filamente → verleihen Zelle Stabilität in tierischen Zellen (Bsp:
Keration in Haare und Nägel
Actinfilamente → kordelartig umeinender gebunden → stabilisieren die Zellmembran
→ ermöglichen Bewegung (z.B im Muskel zusammen mit
Myosin)
Mikrotubuli → steife hohle Räume → bilden Gleitschienen, auf denen sin interzellulärer
→ Proteinröhren aus Tubuli-Dimeren Transport erfolgen kann
→ bilden dauerhafte stützende Struktur
→ können dynamische Strukturen auauen wie das
Spindelapparat
→ Chromosomen können mithilfe von Motorproteinen
bewegt werden
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