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Revision as of 10:15, 26 March 2009 by Z3187043 (talk | contribs) (H/W 24/4/09)

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cell biology

What I learnt in today's cell biology lecture on the nucleus is that the nucleus consists of both an internal and external cytoskeleton which help support and give the nuclear membrane its shape. The outer nuclear cytoskeleton is more random and less dense than the inner nuclear cytoskeleton, and involved in the translocation of the nucleus, while the the inner nuclear cytoskeleton is uniquely made up of intermediate filament protein lamins (type A's ,including A and C, and type B's, including B1 and B2), and is involved in the disassembly of the nuclear envelop whenever mitosis or meiosis occurs.

What I didn't understand is the significance of the overall process of exocytosis.