And the export receptor d they both use rangap to

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Unformatted text preview: f t ­SNARE the lipid composition of the membranes involved in this fusion is specialized the proteins within the synaptic vesicles are highly concentrated the v ­SNARE and t ­SNARE are already partially paired before excitation An important SIMILARITY between nuclear import and nuclear export is that: A) They are both used to transport mRNA molecules across the nuclear envelope B) They both use GTP as an energy source for transport C) Ran ­GTP binds tightly to both the import receptor and the export receptor D) They both use RanGAP to dissociate their transport complexes E) They both use RanGEF to dissociate their transport complexes 11. At critical concentration, A) B) C) D) E) 12. In the process of microtubule assembly/disassembly, reducing the concentration of free tubulin DOES NOT have the effect of: A) B) C) D) E) 13. associate preferentially with ADP ­bound F ­actin nuc...
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