by d 19. The disassembly/ assembly of nuclear Oxidation/Deoxidation C. Glycosyla
ID: 272733 • Letter: B
Question
by d 19. The disassembly/ assembly of nuclear Oxidation/Deoxidation C. Glycosylation/Deglycosylation D. 20. Microtubules originate from which of the following structures? A. Centrosomes B. Nucleosomes C. Proteasomes D. None of the above 21. In contrast to colchicine, taxol works by which of the following mechanisms? A It sequesters tubulin monomers B. It stabilizes microtubules C. It destabilizes microtubules D. It destabilizes tubulin monomers 22. Which of the following is not an example of a local mediator? A. Cortisol B. Histamine C. Nitric oxide D. Nerve growth factor E. Platelet derived growth factor 23. Acetylcholine, a neurotransmitter destined for secretion by a neuron is likely carried by what motor protein and in what direction? A. Dynein, + B. Dynein C. Kinesin, - D. Kinesin, + 24. Cytosolic fibrils located on the nuclear pore interact directly with the nuclear localization signal A. True B. False 25. A cells contractility and motility apparatus is predominated by which of the following cytoskeletal elements? Actin B. TubulirnExplanation / Answer
19. B. Phosphorylation/dephosphorylation
20. A. centrosome
21. B. it stabilizes microtubules
22. A. cortisol
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